The Rose-veiled fairy wrasse, a small reef fish discovered in 2022.
Luiz A. Rocha/Wikimedia Commons
From fluffy crabs that wear sea sponge hats to worms that glow in the dark, scientists are constantly finding amazing new life forms in the ocean.
A highway loops around a tailings pond at the Syncrude facility in Fort McMurray, Alta. The proximity of such toxic wastewater ponds to nature threatens its biodiversity.
THE CANADIAN PRESS/Jeff McIntosh
As toxic water continues to spill from tailings ponds across mining developments, decades of scientific research provides evidence of how wildlife will be affected.
Images of the snailfish seen at the Izu-Ogasawara Trench.
University of Western Australia
The snailfish was recently found living at depths believed physically impossible.
Nematode larvae belonging to the genus
Anisakis can cause the disease anisakiasis, a threat to human health.
Shutterstock / WH_Pics
Raw seafood dishes such as sushi, poke bowls and ceviche are increasingly popular, but can harbour fish-borne parasites. What’s the best way to protect ourselves?
Establishing the financial worth of a river’s fish is complicated when many people don’t sell the fish they catch.
Tang Chhin Sothy/AFP via Getty Images
Putting a dollar value on nature has staunch opponents who say it’s morally wrong, but without it, building dams and other infrastructure can run roughshod over vital ecosystems.
Sightings of thin killer whales have led researchers to blame the decline of these whales to the shortage of Chinook salmon.
THE CANADIAN PRESS/Keith Holmes, Hakai Institute
Food quality, not just quantity, matters when it comes to the health and survival of the southern resident killer whales.
Salmon’s distinctive colour comes from carotenoids in their diet.
Antioxidants in salmon’s diet give the fish their distinctive colour, but internet rumours proliferate about how farmed salmon achieve the same colour.
3D rendering of the tiktaalik, an extinct walking fish.
We can trace our human evolutionary lineage back to fish.
Shark and stingray populations have declined by 71 per cent in the last half-century.
(Hannes Klostermann / Ocean Image Bank)
Over 100 shark and ray species were recently added to an international treaty, known as the CITES list, to protect them from the threat of unsustainable and illegal trade.
Synthetic clothing sheds tiny plastic fragments known as microfibres when washed.
Cultura Creative RF/Alamy Stock Photo
By washing our clothes, we release microfibres into the environment which are then ingested by marine animals.
Pam Longobardi amid a giant heap of fishing gear that she and volunteers from the Hawaii Wildlife Fund collected in 2008.
Pam Longobardi collects and documents ocean plastic waste and transforms it into public art and photography. Her work makes statements about consumption, globalism and conservation.
Ivor Stuart/The Conversation
Carp can make riverbeds look like golf balls – denuded and dimpled, devoid of any habitat. Releasing carp herpes virus is a controversial proposition, so let’s weigh up the risks and benefits.
Why an exploding aquarium in Berlin should destroy prevailing myths about the inner lives of fish.
The rising use of antidepressants has led to a parallel spike in their presence in our ecosystems.
Neuroactive compounds in antidepressants enter our wastewater and affect how fish function. Identifying the potential damage to fish is paramount for protecting our aquatic ecosystems.
Invasive rats can fundamentally alter the functioning of surrounding marine ecosystems.
Rats are disrupting the flow of nutrients towards the sea on many tropical islands – this has consequences for fish behaviour and the wider ecosystem.
Swimming and surfing in the ocean is fun and invigorating. But sharing the water with animals comes with risks to us and them.
When fish like this netted cod are exposed to mercury, it accumulates in certain organs, including the lenses of their eyes.
A new study shows that a time stamp can be put on mercury that accumulates in fish eyes, offering a window into their lifetime exposure.
Researchers discovered five new species of black corals, including this
Hexapathes bikofskii growing out of a nautilus shell more than 2,500 feet (760 meters) below the surface.
Black corals provide critical habitat for many creatures that live in the dark, often barren, deep sea, and researchers are learning more about these rare corals with every dive.
Christopher D H Thompson
Thousands of hours of ocean footage reveal how fish rub their heads on sharks to scrape off parasites and scratch itches.
The white-necked jacobin (Florisuga mellivora) is a medium-size hummingbird
Narwhals, hummingbirds and the Asian sheepshead wrasse have opened scientists’ eyes to the complexity of nature.