The Great Pacific Garbage Patch, a floating accumulation of rubbish the size of a continent, has whales and dolphins in its heart.
Do animals have their own culture? A researcher studying the culture of whales argues that they do. She says understanding that may be one way to save them from extinction.
These small shrimp-like creatures are more than just whale food.
Dead whales usually sink, so most evidence of 'ship strikes' quickly disappears beneath the waves.
Scientists have used drones and 3D modelling to work out the weight of Earth's largest mammals without killing them.
The Trump administration is changing implementation of the Endangered Species Act in ways that conservationists say would reduce protection for some of America's most threatened wildlife.
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.
Japan's exit from the IWC should spur on more global cooperation on environmental issues, not less.
North Atlantic right whales are headed toward a traumatic extinction, but could rebound if humans can get out of their way.
Russia isn't the only nation suspected of training marine mammals for military use – the US, UK, and Ukraine have all done so in the past.
Protecting forests and wetlands, which absorb and store carbon, is one way to slow climate change. Scientists are proposing similar treatment for marine animals that help store carbon in the oceans.
Our flippered friends evolved from small, hooved deer-like creatures more than 50m years ago.
The pressure in the deepest part of the ocean can be 1,000 times greater than the pressure we experience at sea level – but creatures that live and visit there have some very special features.
New research shows how marine mammals ignore the rules of biology to thrive in the world's coldest waters
Climate change is shrinking Arctic sea ice and opening the region to ship traffic. Whales, seals and other marine mammals could be at risk unless nations adopt rules to protect them.
The only sea creature known to attack blue whales is the orca, also known as a 'killer whale'. But humans present a much bigger threat to them.
The noise from motor boats, sonar and other industrial activity interferes with the underwater chatter of fishes.
From the oil that makes your petrol, to car parts, to the groceries and other things in your weekly shop, retail consumerism is driving a boom in the amount of noise in the world's oceans.
Pond snails use things like rocks or the side of their aquarium as their bed, attaching themselves while they sleep. This might not seem very relaxing but their shells do hang away from their body.
An animal behaviour expert gives his view on finding that a killer whale can copy the sound 'hello'.