There are at least some markers of joy that appear to be quite widespread across animals. One is vocalizations that resemble ...

Mammals have the same brain areas required to feel emotions as humans do, and bird brains contain similar structures for thinking and feeling. Animals may also go out of their way to spend time ...

For years, scientists have tried to understand how animals express emotions. Unlike humans, they cannot describe their feelings, leaving researchers to rely on behavioral and physiological cues.

A massive study of fraternal and identical twins has surprisingly concluded that much of our emotional response toward dogs is genetic.

The scientific journal Science ran a feature on the current state of AI technology that scans the faces of animals to identify them and detect when they are unwell. Since Charles Darwin suggested ...