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Odd Ocean Critters to Inspire Your Next Halloween Costume
Photo banner credit: Rebikoff-Niggeler Foundation
It’s spooky season, and if you’re an ocean-lover looking for unique DIY Halloween costume ideas, we have some inspiration from across your National Marine Sanctuary System. Learn a few fun facts about strange and interesting animals found in the ocean, along with ideas on how to make a one-of-a-kind costume utilizing common craft supplies, such as paint, ribbons, and construction paper, and items found around the house, like cardboard, an old sheet, or a milk jug. These costumes can be made for anyone from babies to adults. Take the ideas below, get creative, and make it your own! While you’re out trick-or-treating in your homemade Halloween costume, don’t forget to share the fun ocean animal facts you learned in this guide.

The gulper eel, also known as a pelican eel, is a deep-sea-dwelling eel found at depths of 1,600 to almost 10,000 feet in tropical and temperate regions. In 2018, the E/V Nautilus had a rare opportunity to film a gulper eel within Papahānaumokuākea Marine National Monument, showcasing their unique abilities. These odd eels have a pouch-like throat and stomach that they can quickly inflate in order to scoop up larger prey, such as a big squid, a school of fish, or a swarm of shrimp. This behavior reminds many people of a pelican expanding its throat pouch to scoop up fish, which is where the nickname comes from.
While their mouths are an impressive adaptation, they’re actually not the best of hunters because they have very small eyes, making it tough for them to locate prey in the deep, dark, depths that they live in. They have a very thin whip-like tail and lack pelvic fins, which help fish with balance, and do not have a swim bladder, which help fish maintain buoyancy. For these reasons, they are not the best of swimmers.
DIY Gulper Eel Costume
- Make a frame for the gulper eel’s jaw and head using recycled cardboard.
- Paint the cardboard cutout dark purple or black.
- Draw, cut out, and glue on felt pieces to represent the eyes and teeth. If you don’t have felt available, you can cut the pieces out on recycled construction paper, cardboard, or paper towel rolls and paint them the desired color. You could even do a beach clean up and use the plastic scraps you collect to create the eyes and teeth of this costume.
- Attach a long trail of black fabric to the back of the cardboard piece, representing the eel-like body.
- Wear a dark purple or black outfit and put on your homemade gulper eel headpiece!
Portuguese Man O’ War (Physalia physalis)


Portuguese man o’ war may look like a type of jelly, but they are actually a type of siphonophore, which are closely related to corals and jellies. These colonial animals are made up of groups of specialized organisms, known as zooids, that work together as a unit. Each of the four specialized zooids of a man o’ war is responsible for a specific task, such as floating (the pneumatophore), capturing prey (the dactylozooids, or tentacles), feeding (gastrozooids), and reproduction (gonozooids).
These ocean drifters generally live in warm tropical and subtropical waters and get carried by wind and currents into the waters such as Florida Keys National Marine Sanctuary, Gray’s Reef National Marine Sanctuary, and Flower Garden Banks National Marine Sanctuary, and can appear in groups of more than 1,000. The top part of their body is a float, or a sail, referred to as a “pneumatophore,” that is partially filled with carbon monoxide. Like other animals in the Phylum cnidaria, Portuguese man o’ war have stinging organelles, called nematocysts, that line their long dactylozooids and are meant to stun and capture their prey. These long tentacle and polyp colonies that extend below the ocean’s surface from the float can reach lengths of up to 30 feet!
DIY Portuguese Man O’ War Costume
- Use a wide-brimmed hat for the base of your costume to represent the gas-filled pneumatophore and paint or tye-dye it blue and purple.
- Take several pink and purple puffballs or painted cotton balls and glue them to the brim of the hat to represent the gonozooids.
- Use short, purple, paper streamers to represent the gastrozooids. For a more sustainable option, you can use old shoe strings or paracord.
- Recycle your old gift wrapping supplies! Attach some different blue, purple, and pink long ribbons to the brim of the hat to represent the long and often curly dactylozooids. If you don’t have ribbons to use, another option is to cut an old sheet into thin strips and dye the fabric blue and purple.
- Wear a blue or purple outfit and put on your Portuguese man o’ war hat!
Black Seadevil Anglerfish (Melanocetus spp.)

The deep sea is a dark place, and food can be hard to find without a good strategy. An anglerfish is a type of bony fish that lives in the deep sea, that uses fishing rod-like projection with a light at the end to lure in its prey. The light is produced by millions of bacteria inside of a specialized organ (the “esca”) through a chemical process called bioluminescence. There are over 200 species of anglerfish, but the most widely known and recognizable is the black seadevil anglerfish, which has long, spiky teeth protruding from its jaws.
The black seadevil anglerfish, like the one in this video from Monterey Bay National Marine Sanctuary, uses its bioluminescent lure to attract prey. When the timing is right and an unsuspecting prey swims too close, the anglerfish snatches it up. This sneak attack style of feeding is known as “ambush predation.”
Decorator Crab (Superfamily Majoidea)DIY Anglerfish Costume
- Spray paint a bike or skateboard helmet black.
- Use cardboard cutout pieces to make the body, mouth, and fins of the anglerfish that will attach to the helmet and fit around your head, then spray paint the pieces black and glue them onto the helmet. You may need to layer the pieces to get the correct shape.
- Cut a small slit in the top of the anglerfish’s head through the cardboard and slide a battery-powered book light through the slit.
- You can make the eyes of the anglerfish costume out of a variety of things. You can cut two circles out of a recycled plastic container, such as a milk jug, or you could use duct tape, cardboard, paper, or felt.
- The teeth of the anglerfish can be cut from white craft foam, felt, or cardboard.
- Wear a black outfit, put on your anglerfish helmet, and start luring in your prey!
Decorator Crab (Superfamily Majoidea)

Decorator crabs are one of nature’s masters of disguise. There are several different species of decorator crab, all belonging to the superfamily Majoidea. These creative crabs use materials from their environment to hide from, or ward off, predators. They do this by covering their hard outer shell (exoskeleton) and legs with algae and animals such as sponges, anemones, tunicates, and bryozoans in order to blend in with the seafloor environment.

Their bodies are covered in fine bristly hairs that act like a type of Velcro, latching onto the chosen decorations. Some decorator crabs are highly selective about the decorations they choose, such as the furcate spider crab (Stenocionops furcatus), which often chooses to wear the hitchhiker anemone (Calliactis tricolor) on parts of its body to deter predators. In this symbiotic relationship, the crab gets protection, and the anemone gets a place to live and discarded scraps of the crab’s food. This particular relationship has been observed throughout the tropical Atlantic and Gulf of Mexico, and was first documented in Flower Garden Banks National Marine Sanctuary in 2007 during a Stetson Bank Long Term Monitoring Cruise.
Crabs are crustaceans that have 10 legs. Most decorator crabs are a type of spider crab, which tend to have long, thin limbs and a triangular carapace (shell). They have a front pair of legs with pincers, and the remaining four pairs of legs are pointy at the end. Like many other crustaceans, rather than the shell growing along with the body of the decorator crab, the crab has to shed its shell in a process known as “molting.” Each time the decorator crab molts, it carefully removes its anemones, sponges, and other decorations so it can use them on its newly grown exoskeleton.
Can you find the decorator crab hiding on the reef in this 360 video of Cordell Bank National Marine Sanctuary?
DIY Decorator Crab Costume
- Trace a rounded triangle onto a piece of cardboard and cut out the shape.
- Use felt or an old sheet and retrace the shape onto that, with about two inches of overhanging fabric.
- Cut a few 1-inch slits into the edges of the fabric to make it easier to bend and fold.
- Place the fabric over the cardboard cutout and begin folding the notched edges under and gluing the fabric to the cardboard on the underside. Leave a 5-inch opening for the next step.
- Add stuffing into your crab’s exoskeleton through the gap. You can re-use the stuffing from an old, unwanted pillow or old stuffed animals.
- Add straps to your exoskeleton so you can wear it on your back (just like a backpack).
- To make the front pair of pincers you can use a pair of oven mitts.
- For the remaining eight legs, draw them onto a piece of cardboard, paint them your desired color, cut them out, and glue them to the carapace.
- To create the stalked eyes of the crab, glue googly eyes to styrofoam balls and attach them to a headband using hanger wire.
- To make your crab stand out as a decorator crab, be sure to glue or Velcro some items to its exoskeleton! You can keep your costume realistic and create your own sponges, tunicates, anemones, and algae to glue to your shell, or you can be a more comical version — a “trashy” decorator crab — and attach random household objects to your shell, such as a hair brush, a pearl necklace, and socks.
- To complete the costume, wear a brown, orange, or red outfit under your decorator crab backpack.
Dumbo Octopus (Grimpoteuthis spp.)

It’s not a flying elephant that lives in the sea; the dumbo octopus is a type of umbrella octopus that is found deeper in the ocean than any other type of octopus (over 13,000 feet). Umbrella octopuses swim by flapping a pair of very large fins that protrude from the mantle above the eyes. There are 14 known species of umbrella octopus, all belonging to the Grimpoteuthis genus. These eight-armed inhabitants of the deep-sea feed on snails, worms, bivalves, isopods, and other small prey.
Unlike many of the other octopuses found at shallower depths, dumbo octopuses lack chromatophores and are unable to color-change to camouflage with their surroundings. Their bodies are usually pale or unpigmented, with some dark purple pigmentation on the oral surface of the arms (the side that has the suckers on it).
DIY Dumbo Octopus Costume
- To create the eight arms of the dumbo octopus, you will need two different-colored fabrics: a pale pink (dorsal side) and purple (oral side). Make the oral piece slightly narrower than the dorsal piece.
- Cut out eight 20–24 inch-long arms. The arms should be wider at the base (5–6 inches) than they are at the tip (about 1 inch), and the tip of each arm should be rounded.
- If you want your octopus arms to curl slightly, you can sew a piece of elastic into the middle of the tentacle on the dorsal side (the lighter pink fabric).
- Sew your pieces of fabric together on three sides, leaving the base end open for stuffing.
- Stuff your eight octopus arms with recycled pillow stuffing or cotton balls, then close up the final edge.
- Cut out a two-inch strip of fabric to create a waistband and sew it into a ring that will fit the costume-wearer.
- Attach the eight arms onto the waistband.
- To create the characteristic large, flapping fins of the dumbo octopus, you will cut a large oval (about 24 inches) out of the pink fabric and then cut the oval in half.
- Use hot glue to attach one half of the oval to one side of a headband and the other half of the oval to the other side so when you wear the headband, you have a flappy fin on either side of your head.
- Wear a pale pink outfit under the eight-armed “skirt” and start flapping your way around the deep sea.
Other Possibilities
There are lots of other bizarre-looking, funky, and spooky animals found throughout your national marine sanctuaries and beyond. If the examples above didn’t get you into the Halloween spirit, see if any of the other options below can inspire your next ocean-themed costume idea!
Rachel Plunkett is the writer/editor for NOAA’s Office of National Marine Sanctuaries
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Issue 121 - June 2025
Patrick & Dave’s Pride Guide: Scuba, Drag & Coral Reefs in Miami Beach
If you’re looking for a sun-soaked holiday to take this Pride Month, where you can snorkel or scuba dive and then have a refreshing beverage at a local queer bar and dance the night away—or turn in early and have a sunrise paddleboard with your partner—look no further than Miami Beach.
Miami hasn’t historically come to mind when planning a scuba vacation, but my husband and I have been exploring the nearshore reef off of South Beach since 2021 and we think our beach town has everything to offer for an LGBTQ+ eco adventure vacation. I have been diving for 20 years and found species here that I haven’t seen anywhere else like the lesser electric ray and the guitar fish!





Only a few hundred feet from “Gay Beach” (12th Street), lies a coral reef that has remained resilient throughout the recent global bleaching phenomenon. A significant portion of the divers and snorkelers exploring this underwater ecosystem are part of the LGBTQ+ community that is growing each summer month when the waters are calm and the winds are low—the ideal time to visit the reef. The existence of this shore-accessible reef has inspired many queer people to get certified and discover the vibrant “rainbow of life” just a short swim from our city because it’s so easy to get to.
This community, led by many queer and women-led organizations, has been working to protect the reef and turn the entire area into a marine park. The biodiversity is stunning, numerous endangered hard corals and all sorts of rarely spotted marine life swim in this easily accessed site.
Miami Beach is a perfect eco-adventure destination for the LGBTQ+ community. Nowhere else can you find such a vibrant queer-oriented city just hundreds of feet from a spectacular coral reef. Picture a typical Saturday afternoon, swimming out to the reef with your friends while listening to the drag queens perform at the world-famous Palace bar across Ocean Drive. You can dive with locals in the morning, dry off for a fan clacking drag brunch, and dance the night away at the gay clubs.

Some recommendations for an Ocean eco adventure vacation during Pride Month in Miami Beach:
Stay:
Check into the locally owned Gaythering Hotel at the bay-end of Lincoln Road. More than just a hotel, this local gem has become a staple in the queer community, hosting local sports leagues and raucous Sunday BBQs with entertaining bar games like hot potato (which may or may not use an actual potato), drag race competitions, and “pop the balloon.” They also host nightly events such as Karaoke Mondays, Trivia Wednesdays, and Bingo Thursdays. If you’re visiting on the last weekend of the month, I host a Queer Easels pop-up art show highlighting local South Florida artists.

Paddleboard in the Bay:
Take a short stroll from the Gaythering to Purdy Avenue, where 2–3 rental options offer paddleboards to explore the tranquil bay. This peaceful setting is ideal for spotting South Florida’s diverse birdlife, including pelicans, ospreys, cormorants, and if you’re lucky, the rare, pink-feathered spoonbill (I’ve only seen one in the wild while paddleboarding off Purdy Avenue!). You’ll almost certainly see ospreys soaring overhead and cormorants drying their wings on channel markers. For experienced paddleboarders, exploring the mangroves on the north side of the bay is a treat—just remember sunscreen and water, and keep your eyes peeled for manatee snouts and dolphin fins!

Hit the Beach:
Grab the free rental bikes from the Gaythering and make your way to the local gay beach at 12th Street! You’ll know you’re in the right spot when you spot the rainbow-colored lifeguard tower and the Progress flags just to its south. On your way, pick up a sandwich from La Sandwhicherie, but guard it closely from the seagulls—you won’t want to share anything covered in the “magic sauce” from one of Miami Beach’s oldest continually running businesses.

Explore the Reef:
When you’re ready to meet the fishes, the easiest place to start is the South Pointe Jetty. Located at the southern end of the island, the best time to go is early in the morning before fishermen cast their lines. While fishing is technically not legal from the jetty, enforcement can be lax, so remain vigilant for fishing lines. We highly recommend bringing a diver buoy with you when snorkeling or diving to improve your visibility and help avoid accidents. Avoid the area of the jetty that begins to be submerged due to strong currents.
Scuba diving is excellent between 5th and 10th Streets. We are actively working with a group of local environmentalists to preserve this nearshore reef and create a safe zone for visitors while also protecting the reef from ongoing anchor damage. Currently, the vessel exclusion zone ends right at the near-edge of the reef, posing a potential for boat strikes. That’s why the first priority for the reef protection project is to move the buoys to the west side of the reef. This way, boaters can still enjoy the area, and we won’t have to worry about people encountering propellers while trying to meet new, gilled friends. Always check conditions before entering the water and carry appropriate safety equipment. In Florida, you are required to carry a dive marker with you while shore diving.
After your fill of ocean and bay adventures, head over to Palace for one of their famous drag brunches. Don’t forget to stop by their rooftop pool deck to catch the sunset and, on a clear day, get a bird’s-eye view of the reef. Then, dance the night away at Twist!
More Nature Excursions:
If you’re itching for another nature excursion, explore the Everglades on an airboat ride where you can spot some of our more ancient residents, the American alligator. If you’re heading that way, be sure to stop by Robert Is Here for one of their famous milkshakes and say hello to the animals in their petting zoo out back. Paddleboarding is also fantastic at Oleta State Park and along the scenic route to the Florida Keys!
About the Authors:
Patrick Breshike and Dave Grieser are a married couple living in Miami Beach, FL, with a deep passion for the ocean. Patrick is an artist and underwater photographer who draws inspiration for his work from the magic of the underwater world. Both Patrick and Dave are certified Divemasters and dedicated advocates for ocean conservation and their local LGBTQ+ community. They have been instrumental in a grassroots project to create a marine park in the nearshore waters off Miami Beach, aiming to protect the endangered ecosystem and ensure it’s safe for the community to visit. You can connect with them through their website, MiamiBeachMarinePark.com, or Patrick’s art website, gayfishes.com. Dave and Patrick are working with the local non-profit Urban Paradise Guild to advocate for the Marine Park. Check out urbanparadiseguild.org/lbr for more information.
Issue 121 - June 2025
Seabird Science in the 21st Century: What Cormorants Can Teach Us About Observation and Adaptation
Seabirds have long been considered indicator species, useful for gauging the health of a marine ecosystem as a whole. They can be observed more easily than fish, whales, and other creatures living under the surface of the ocean. For most of our history, humans had very few ways to make observations beneath the waves. Seabirds, however, have always been visible to us. Though they live and breed above water, they feed almost exclusively on fish. They form an arm of the marine food web that sticks up above the water, where we can see it with the naked eye.
In recent centuries, technological advancements have made it just as easy to take measurements under the water, observing entire marine ecosystems in situ, but so too have they multiplied the number of ways in which we can study seabirds.
The Evolution of Tools and Methods
The 21st century saw a number of advancements that affected the field of seabird biology. There was a boom in the popularity of solar panels, improving remote camera setups. Drones, or remotely piloted aircraft systems (RPAS), were approved for commercial and private use. Machine learning, particularly neural networks, became mainstream tools. And of course, the quality of images taken on digital cameras continues to improve.
All of these tools came together on the project that became my master’s thesis (and that of three other students). Together we studied breeding success at three mixed Double-crested Cormorant and Pelagic Cormorant nesting colonies, but my project focused more particularly on comparing methods of surveying.
Remote Island Realities: Mitlenatch Island
The three colonies sit on a spectrum of remote to urban environments. Mitlenatch Island is a tiny island in the Salish Sea, only about one kilometer long by half a kilometer wide. It sits in the north of the Salish Sea between Vancouver Island and mainland British Columbia, Canada. Both Vancouver Island and the mainland are covered in rainforest, but Mitlenatch Island is in the rain shadow of Vancouver Island, making it a tiny semi-arid blip in the middle of the sea. It is accessible only by small boat and is a provincial park and nature reserve with only a couple public trails. I have been to Mitlenatch Island six times, but many volunteers in its stewardship trust have visited countless times over many decades.
Where they haven’t been, however, is the Double-crested Cormorant nesting colony atop the cliff at the southwest corner of the island. It is far from the public trails, and we needed a permit from BC Parks to access that part of the reserve. One week after moving to British Columbia, I was clambering up those rocks to install a camera to photograph the cormorants for my master’s degree research.
Many seabirds nest on cliffs because they afford protection from predators. But this cliff was accessible to numerous predators: crows, ravens, gulls, and even otters can get close enough to snatch eggs if the parent is away from the nest. And as we found in the photos on the camera that first year, the cormorant parents all left their nests nearly every day for the same reason: bald eagles. A bald eagle pair nests on Mitlenatch Island, less than 200 m away from the cormorant colony. Every time either of them overfly the colony, or any of their young that are still around (juvenile eagles may stay with their parents for a few years while they mature), every last cormorant flushes from the colony.
Years of Discovery and a Breakthrough
In 2021, the first year we set up the camera at the Double-crested Cormorant colony, we observed that not a single chick hatched. We didn’t get any photos of eggs either, but we assumed that some had been laid given the normal courtship and incubation posture we saw the cormorants in. When we returned that fall to collect the camera (not knowing what we would find on it, as it doesn’t transmit the photos), we spotted eggshells a stone’s throw away from the colony. Not somewhere they would have ended up after hatching. We assumed predation of those eggs. Some predation is expected, of course, in any population, but we were astonished to realize not a single egg had survived to hatch.
What happened to them? The camera showed evidence that pressure from the bald eagle family was causing the cormorants to flee from their nests daily, only returning once the threat had passed. It captured numerous photos of an empty colony with eagles seen in the background. In 2023, the camera finally captured proof: a photo of a crow, with an egg in its beak, flying past the camera while all the nests were empty.
Then, in 2024, for the first time since installing the camera, we saw chicks. Something had gone right for the colony this year, but what? The eagles were still around, with their family of four flying around the island. We don’t know what made the difference that year. Our options for observation were limited to our post-mounted camera and the kayak-based surveys done by the stewardship trust. Mitlenatch Island is too remote for frequent visits.
Middle Ground: Gabriola Island
Gabriola Island is much larger at 14 km long by 4 km wide and is less remote—being accessible from the city of Nanaimo by a 25-minute ferry ride. It is also between Vancouver Island and the mainland, but unlike Mitlenatch Island it has permanent human inhabitants, and is bypassed constantly by boat traffic both large and small. The Gabriola Island cormorant colony is on a sheer cliff face facing the city of Nanaimo and a busy shipping channel, but atop the cliff there are only a few quiet dwellings. Here, too, we installed a single static camera to photograph the colony from above. Unlike Mitlenatch Island, however, we had a vantage point 1 km away in Nanaimo from which we could take long-distance photos, too. We took these once or twice per breeding season. The Gabriola Island colony successfully reared chicks throughout my time working on the project, but wasn’t nearly as productive as the third colony site.
Urban Success Story: The IMSN Bridge
The largest colony not only in our study, but in the entire Salish Sea, is found on the mainland at the Ironworkers’ Memorial Second Narrows (IMSN) Bridge in Vancouver. The IMSN Bridge connects the city of Vancouver with the Lower Mainland’s north shore, and is one of only two road bridges that do so. The cormorants nest on the crisscrossing support beams below the road surface and have vehicle traffic passing overhead 24/7. A rail bridge passes parallel to the IMSN Bridge less than 100 meters away, and a shipping channel passes right below. It’s unlikely for the IMSN Bridge cormorant colony to ever have a quiet day. But there’s one thing that doesn’t seem to give them much trouble: eagles.
In all our observations of the bridge colony, 2–4 times per week for five breeding seasons, we have never observed the cormorants flush from their nests. There are certainly bald eagles in the area, with at least one nest within 1 km of the bridge. But they don’t seem to frighten the cormorants on the bridge like they do those on the cliffs.
Why not? The question of why animals do anything is always difficult. It’s possible the horizontal surface overhead makes the cormorants feel safer, or even that it hides the eagles from their view when they are close enough to normally be a concern. Whatever the mechanism might be, it appears the bridge offers some measure of predator protection to the cormorants.
The Power of Access and AI
Aside from apparently being less accessible to eagles, the IMSN Bridge colony was more accessible to us as researchers. We students took it in turn to visit the colony (averaging 2–4 visits per week between the four of us) and photograph it from a ground-level vantage point below the bridge. We used a robotic mount, tripod, and 200x zoom lens to take a mosaic of photos, to be stitched together into a panorama later. We also experimented with the use of a drone, or RPAS, to photograph the nests from above. Because the bridge colony was so accessible, we ended up with more panoramas than we could process. Finally, we developed a convolutional neural network (CNN) to count the cormorants and nests in the panoramas. The CNN can scan a panorama much faster than a human, and after months of tuning, is about as accurate as a human too. With our Nanaimo-based vantage point, it might be possible to someday make a similar model for Gabriola Island, but Mitlenatch Island is too far from any other landmass for it.
A Changing Field with Expanding Possibilities
The three colonies we studied have varying degrees of accessibility and different sets of survey methods. Ultimately, there is no single method that can be used at every colony. At the IMSN Bridge, which is owned by the provincial government, we were unable to get permission to install a stationary camera. We didn’t have the time or resources for frequent visits to Gabriola Island or Mitlenatch Island. Hiring a licensed RPAS pilot was prohibitively expensive to do for the duration of the project. Any seabird colony study will run into limitations on what methods are feasible for them. Even so, we are spoiled for choice in comparison to past decades. New methods can improve the quality of data, the amount and types of data it’s possible to collect, and the speed at which they can be analyzed. With an abundance of data and software tools to process it, we can investigate new and more complex questions with the time we would once have spent on manual entry and calculations. Where our options as seabird biologists were once limited to recording data with pencil and paper from a boat or bird blind, a whole world of new possibilities has opened up.
About the Author
Rose Wilkin is a lesbian conservationist based in Vancouver, BC. She monitors the Great Blue Heron colony in Stanley Park and previously studied various cormorant colonies in the Salish Sea. Rose received her Master’s degree in Ecological Restoration from Simon Fraser University in collaboration with the British Columbia Institute of Technology. Her thesis focused on cormorant monitoring methods. Her forthcoming paper based on this work will appear in Ornithological Applications. Seabirds have been her lifelong passion, and she considers it a privilege to study them in her career.
Issue 121 - June 2025
What Can Whales Tell Us About Human Queer Identities?
A lot of the time, we humans like to consider ourselves unique, evolved, and somewhat separate from our animal cousins. We, however, have a lot more in common than we think. While our culture has historically had a negative attitude towards homosexuality, for over 1,500 species of animal, homosexual behavior is natural. Cetaceans (i.e., whales, dolphins, and porpoises) in particular have been recorded expressing an entire spectrum of queer behaviors. This group of species are considered more emotionally intelligent than humans, suggesting that their thoughts and emotions are more complex and developed than our own. Which leads to the question – what can whales tell us about human queer identities?
The Anti-Nuclear Family
While the Spice Girls may have coined the term Girl Power in the late 1990s, whales have been living this slogan since time immemorial. A society led by ‘single’ females is one that may be unconventional to us yet is traditional beneath the waves. Matrilineal social structures, where females are head of the family and a male’s main contribution is reproduction, is standard across many species of cetacean. Back when Northern Resident killer whale C1 (Namu) was accidentally captured in nets in British Columbia in the 1960s, and subsequently transported to Seattle aquarium in a floating sea pen, the media considered the whales following Namu to be his wife and children. In fact, these whales were his mom and siblings. Some of the first people to study killer whales also thought that pods were led by the largest male in the group (i.e., patriarchal), when in fact these males are in fact largely dependent on their moms for their whole lives. Whale families are more akin to human family structures led by single moms, lesbian moms, or moms raising their kids with a village of family and friends. There is something to be said about the world’s most emotionally evolved species being led by females.

‘Bromances’ and ‘Gal Pals’
As a lesbian, I have been victim of the ‘friends’ or ‘sisters’ generalization when my wife and I are doing something as basic as renewing our health cards or going out for dinner. This human bias also translates to the underwater world of whales. Killer whales typically stay with their moms their whole lives, but sometimes, male whales are seen outside of their immediate family group. There are instances of two or more male, adult killer whales travelling and associating with each other for years, like shark-eating Port with Starboard off South Africa, T128 (Flotsam) with T125A (Jetsam) in the Northeast Pacific, and W001 (John Coe) with W008 (Aquarius) off the west coast of Scotland. Whether these whales are together through circumstance (i.e., roommates) or more (i.e., lovers), these associations are typically labelled ‘brothers’ or ‘friends’. Similarly, female sperm whales are considered to form life-long friendships with other females. They are even known to share the equivalent of ‘inside jokes’ through unique dialects across generations, redefining our human standards of BFFs. As this species is deep diving, we as humans only get to observe this species for the brief moments they are at the surface, meaning there could be a lot more going on between these besties than meets the eye.

From assumptions to observations, whilst captivity limits the ability of whales to exhibit natural behaviors, it’s one benefit is the ability to observe whales up close and personal – for science. Lesbian sex between killer whales has been observed in captivity, and whilst the reason behind this behavior is not 100% confirmed, some scientists have suggested that same-sex genital contact in female dolphins is driven by their ability to feel pleasure via their evolved clitorises. Females however are not alone in this. Homosexual behaviors are more commonly observed between male whales (maybe because it is more obvious…). In western Australia, male bottlenose dolphins regularly take part in sexual contact with other males to strengthen long-term alliances and maintain social structure. Bottlenose dolphins off western UK waters have also been reported to exhibit similar behavior. Dolphins, however, are not alone in this. Humpback whales were in the news recently for exhibiting the same behavior off the coast of Hawaii. The first time that sex between two humpback whales was photographed and it happened to be between two male whales. Similarly, male killer whale ‘bachelor’ groups have been observed rubbing body parts together, including their “sea snakes”. Whilst we can only attribute physical sexual observations to whales due to the limitations of field research and our understanding, it is possible that whales exhibit more than sexually-driven attraction for the same-sex. Female humpback whales have previously been recorded singing (usually a trait exclusive to male whales) during the breeding season. Whether this is because the whale wanted to deter nearby male whales, attract a female, or because the whale identified as a male – we will never know.

It’s in Their DNA
An important part of the 2SLGBTQIA+ rainbow includes the ‘I’ – intersex individuals. As well as being born with sex characteristics that are not “typical” for male or female bodies, they are also more likely to identify as queer than non-intersex people. For humans, there is a general lack of research for intersex-identifying individuals, so it is no surprise that there is similarly an incomplete understanding in the world of whales. One of the earliest observations in cetaceans was of an intersex fin whale back in the 1960s, and in recent years, there have been numerous additional observations of wild intersex whales including common dolphins, beaked whales, beluga whales, and southern right whales. The era of DNA-based assessment of whales has driven the discovery of intersex individuals, showing that in cetaceans, intersex is more common than historically thought. Suites of DNA tests, when used in parallel, essentially show that XXY or XYY are possible variations of sex chromosomes instead of being considered ‘anomalies’ through a heteronormative lens. In my own research, we use these exact tools to try and figure out the sex of wild whales from the DNA they leave behind in their ‘wake’ – i.e., flukeprints. While this approach can tell us if the DNA signature is male or female (sometimes with ambiguous results), I am often left wondering how the animals perceive and identify themselves. Lastly, in the whale research world, if we do not know the sex of a whale we are monitoring, most refer to them as they/them – the singular pronoun. Gender-neutral pronouns exist in the animal world as they do in the human world and using them is really not that difficult.

So, there it is. A light-hearted look at the queer lives of whales and how it makes us think more about what it means to be in the 2SLGBTQIA+ community. I of course caveat with the above as daring to look through a non-heteronormative lens (at the risk of anthropomorphizing), to get you thinking about how our queer identities are not all that different from our animal cousins. In fact, it is natural and should be celebrated as part of the diversity of life.
About the Author
Dr. Chloe Robinson (she/they) is a scientist, conservationist, and science communicator. She currently holds the position of Advisor & Technical Lead for the Whales Initiative at Ocean Wise, where she leads conservation programs aimed at protecting vulnerable whale species. As a scientist, they primarily focus on developing and implementing environmental DNA-based approaches for closing data gaps on whales and their prey, having published 25+ peer-reviewed articles on the application of non-invasive methods for monitoring biodiversity. As a conservationist, she leads the Whale Report Alert System (WRAS), which reduces the risk of ship strike for large whale species across the west coast of North America. As a science communicator, she has won awards for their contributions to public engagement and science dissemination. She identifies as a gender non-conforming lesbian and a passionate advocate for Equity, Diversity, and Inclusion (EDI) in science. They have spearheaded initiatives such as a workshop series at the University of Guelph to increase 2SLGBTQIA+ visibility in STEM, a Pride seminar series at Swansea University, and the annual Big Gay Whale Watch on Vancouver Island. Chloe considers themself lucky to be an uninvited settler living, working, and playing on traditional territories of the lək̓ʷəŋən (Lekwungen) peoples (“Victoria’, Canada), where she lives with their wife, son, cats, and many whale neighbours.
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