A large group of yellowfin tuna swimming off the coast of Italy. Like all fish, they sleep, but it's not like human sleep. Giordano Cipriani/The Image Bank via Getty Images From the goldfish in your ...

No one should have to sleep with the fishes, but new research on zebrafish suggests that we sleep like them. Sleeping zebrafish have brain activity similar to both deep slow-wave sleep and rapid eye ...

Most of us have felt that the fish are asleep sometimes when we are on the water, but do fish actually sleep? Biologists say not exactly. They enter into a resting state, but so far as being totally ...

One of the big, unsolved mysteries in science is exactly why humans and other animals sleep. There are plenty of hypotheses: it’s believed sleep is important in letting our organs repair themselves ...

Michael Heithaus does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Could you explain how fish sleep? Do they drift ...