I listened to animals' hearts to reveal their hidden emotional worlds

It’s not only humans who feel emotions. In his 1872 book, The Expression of the Emotions in Man and Animals, Charles Darwin described a range of “innate” and “evolved” emotions in dogs, cats, chimpanzees, swans and other non-human animals.

But animals can’t verbally report their emotions, and humans often misread how an animal’s feeling, which can lead us to make them feel…

© La Conversation - dimanche 27 juin 2021