Adult and infant sperm whales have been spotted in the Great Pacific Garbage Patch.
The Great Pacific Garbage Patch, a floating accumulation of rubbish the size of a continent, has whales and dolphins in its heart.
Canada’s Parliamentary debate around captive whales and dolphins touched on the animals’ intellectual and social properties.
As the field of animal law continues growing, so does public awareness of the problems with inconsistent ways that Canadian law protects some animals, while leaving others behind.
Alexey Suloev / shutterstock
New research shows how marine mammals ignore the rules of biology to thrive in the world's coldest waters
Two bottlenose dolphins (
Tursiops truncatus) cooperate in a button-pressing task requiring precise behavioural synchronization.
Dolphin Research Center
Dolphin pairs had to learn to push buttons at the same time to get a reward. So what happened when one dolphin figured that out, while the other still had to learn?
Three allied male dolphins in Shark Bay, Western Australia.
Simon J Allen
Researchers have discovered male bottlenose dolphins can retain individual vocal labels – or “names” – to help them recognise each other in their social network, much like humans.
Bottlenose dolphins, are very coastal and subsist on small fish connected to reefs and smaller bays.
A new report will supply some information needed for science based conservation measures in the Red Sea.
A bottlenose dolphin leaping from the ocean in Panama.
Researchers have found evidence of the same brain pathologies in dolphins that are present in the brains of humans who died with Alzheimer's. What might this suggest about Alzheimer's in humans?
Leaping bottlenose dolphins.
The dolphin population in parts of Western Australia more than halved one year, just as an El Niño event hit over in the Pacific. So what's the connection?
Dolphins contribute important knowledge about ocean health.
Marine mammals are often referred to as sentinels of the ocean and research on whales and dolphins in particular contributes important knowledge about the health of our seas.
Bottlenose dolphin tossing an octopus across the water during feeding off Bunbury, Western Australia.
It's not easy to tackle a live octopus - so many arms, all those suckers! But some bottlenose dolphins have found a way to defuse and eat these eight-armed sea creatures.
Swimming in synchrony is a fundamental social behaviour for dolphins and is thought to reinforce their bonds.
A new study of captive dolphins has found that those engaging in synchronised swimming make more optimistic judgements about an unknown event.
No deep voices here.
Size doesn't always matter when it comes to the pitch of your voice, especially if you're an aquatic mammal.
A rare glimpse of a river dolphin in Cambodia.
Dolphin-watching tourism has pros and cons — so what should you think about next time you head out?
Snow leopard, as captured by the BBC’s Planet Earth II.
The most recent episode of the BBC's Planet Earth II has got people asking some hard questions about the world's most mysterious big cats.
School of thought.
Understanding this will boost conservation efforts.
Some dolphins live close to the shore, where they regularly encounter humans. This is affecting their numbers.
Globally, a quarter of whale and dolphin species are endangered. Though South African dolphin populations are generally in good heath, the humpback dolphin is cause for concern.
Bridget Susan James
Indian Ocean humpback dolphins, which live close to the shore, need protection. The total population is estimated to be just 10,000, with fewer than 1,000 of them off the coast of South Africa.
The Thames whale: a rather lost northern bottlenose.
It didn't turn out well for the whale who went to Westminster, but others have made a happy home in British waters.
Chinese dolphins: sadly, not in the pink.
These unusual and endangered creatures now face a new threat.
Loggerhead turtle populations are facing a brighter future, but many other species are still in decline, while for others there are no data at all.
AAP Image/Lauren Bath
The Great Barrier Reef is home to some 1,600 species of bony fish, 130 sharks and rays, and turtles, mammals and more. Most have had no population monitoring, meaning we don't know how well they are faring.