Microphones on the seafloor recorded life under the Antarctic ice for two years – inadvertently catching seal trills and chirps that are above the range of human hearing. Could they be for navigation?
Dogs' barks say a lot about how they're feeling.
Some animals demonstrate an ability for mathematics that reflects a more sophisticated understanding of language.
Research suggests that people can learn to read cats' facial expressions.
Can we really know what animals think? A philosopher argues that we can't, not with any precision.
When it comes to their own "voices", studies show that cats and dogs use different vocal signals to communicate different messages.
Worker naked mole-rats take care of their colony's young even though they aren't the pups' actual parents. New research suggests the queen gets them ready via hormones in her poop.
Do chimpanzee talk to each other? Scientists follow and record chimpanzees in the wild to find out – and to fill in details about how human language might have evolved.
It can be easy to tell how dogs are feeling but new evidence suggests they're also trying to communicate.
New research confirms puppies respond better when we talk to them in a certain way.
Scientists have identified the brain region that makes it possible for parrots to speak.
Slow, lazy, stupid? It's time to update your impression of the crocodilians. These animals are up to amazing things that we're only beginning to observe and recognize.