Do animals dream? If you’re a pet owner, it may seem obvious that your furry friends dream. Most of us have seen dogs running in their sleep or cats meowing during a nap. But this is an academic ...

“I think dreaming gives us a way of extending a number of cognitive capacities to animals; that includes things like emotion, memory, and even imagination,” says David M. Peña-Guzmán, who studies the ...

Young jumping spiders dangle by a thread through the night, in a box, in a lab. Every so often, their legs curl and their spinnerets twitch—and the retinas of their eyes, visible through their ...

When Animals Dream: The Hidden World of Animal Consciousness, by philosopher Dr. David M. Peña-Guzmán, is part storytelling and part dense academic text. The book tackles a fascinating topic: Is there ...

Last December an Instagram Reel of a “crying” bison—created by photographer Chris Henry—went viral. The video has received more than eight million views and generated thousands of comments. But can ...