Biofluorescence makes researching cryptic species such as this Lizardfish easier and less harmful.
Maarten De Brauwer
Much of the world's ocean is teeming with 'cryptic' fish species, which are small and hard to spot. But a new technique shines a light on these fish, which may in turn help to keep our seas healthy.
Today’s sharks are known to use electroreception to find their prey.
Many living vertebrates have the ability to detect electric fields, especially in other animals when hunting. But what can the fossil record tell us about the origins of this sensory system?
Tiktaalik: bridging the gap between land and sea.
Zina Deretsky/National Science Foundation
Little skates that 'walk' across the ocean floor show how fish brains evolved to pave the way for working legs.
Image from video of Mariana snailfish.
SOI/HADES/University of Aberdeen (Dr. Alan Jamieson)
The Mariana snailfish lives nearly 27,000 feet underwater, but has features that help it adapt to intense water pressure and cold. Physiological limits may prevent fish from surviving in deeper water.
Villagers enjoying the evening fishing in Kavieng, Papua New Guinea.
Sustainable fisheries tick all the boxes. They can fill your belly and your wallet, and generate less CO2 than conventional agriculture. So why is some integral funding for marine fisheries falling?
There are multiple opportunities to detect tapeworm cysts and larvae before the sushi makes it to our plate.
No, it's extremely rare to contract a parasitic infection from eating sushi or sashimi in Australia.
Sockeye salmon need strong hearts to migrate long distances. An oil spill could hurt their survival.
(AP Photo/Gary Stewart, File)
Pacific salmon are ingrained in the culture and economy of Canada. They are also a key link between ocean and land. But what happens if a pipeline failure contaminates their habitat?
Cod and other fish may be unintentionally caught by pulse trawlers.
An expert reviews the research for and against the use of electric pulse trawlers.
The ocean is getting warmer and more acidic but changing our diet could help us cope.
Canned tuna is an Australian pantry staple.
Australians love canned tuna. Here's our handy guide to finding the most sustainable options for you (and your cat).
The sea remains the least explored habitat on our blue planet.
There's plenty of evidence that even fish have feelings.
Pacific seabirds, such as this Great Blue Heron, can accumulate mercury in their bodies from the fish they eat.
Mercury levels in seabirds living off the coast of British Columbia have been stable in recent years. New research suggests that this may be due to changes in their diet, not pollution control.
The evidence shows that both low and high fat diets can reduce your risks of cardiovascular disease – if they are plant-based.
From donuts to avocados, food impacts your heart health. Here we delve into the science of how to eat -- to reduce your chances of cardiovascular disease.
A volunteer diver surveys marine life at Lord Howe Island.
Rick Stuart-Smith/Reef Life Survey
Reef Life Survey, a citizen science project where hundreds of volunteer scuba divers survey thousands of ocean sites, has revealed new insights into marine mysteries.
It really should be consumed at least twice a week.
A study of middle-aged British women shows that omega-3 has beneficial effects on gut health.
The offspring of mice who don't get enough DHA during pregnancy are more likely to have pups that display schizophrenia-like symptoms.
Snapper is one of the fish under New Zealand’s Quota Management system.
New Zealand’s fisheries are considered among the best managed in the world, but this perception doesn't match the facts.
Plastic trash on San Francisco’s Ocean Beach.
A new study shows that anchovies – key food for larger fish – are attracted to plastic trash because it smells like food. This suggests that toxic substances in plastic could move up through food chains.