Well, wonder no longer. The Daily Telegraph is here to answer life’s big questions and with the help of our friends at SEA LIFE Sydney Aquarium we think we’ve got this one sorted. Aquarium marine ...

Some fish likely do engage in something that is very similar to sleep. A 2019 study at Stanford University had researchers ...

A protective mucous cocoon surrounds this parrotfish as it sleeps in Australia's Great Barrier Reef. This layer of protection helps fend off predators so parrotfish can get a good night's rest.

Sleep is one of the most essential parts of being human. Catching some Z’s is important for daily functioning. As adults, we've got to get in about eight hours a day, according to the Sleep Foundation ...

The short answer is yes, fish do sleep. But the way they sleep differs from land-dwelling creatures. Unlike humans who have eyelids, fish don't close their eyes when they sleep. Instead, many species ...

Emilie Le Beau Lucchesi, Ph.D., is a freelance journalist who regularly contributes to Discover Magazine. She reports on the social sciences, medical history, and new scientific discoveries. View Full ...

Scientists have hooked a fish that suffers from insomnia in their quest to understand the genetics behind sleep disorders. Even zebrafish - a common aquarium pet - can have a genetic mutation linked ...

Many grad students can sympathize with the blind form of the Mexican tetra. Researchers speculate they sleep only a few hours a night, because they simply don't have time to rest. "These fish live in ...

Sleep in fish may look different from humans, but rest is essential for survival. Here’s what experts have to say about fish sleep. A protective mucous cocoon surrounds this parrotfish as it sleeps in ...