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 ...

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 ...

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 ...

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 ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Culum Brown 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 their ...

Take a look at the gorgeous parrotfish in a tropical ocean scene in this Instagram post. The vibrant fish shows off its bright blue and yellow coloration. Now, take a closer look. Can you see the ...

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 ...

They make great pets — quiet, docile, friendly enough — but do fish sleep? Scientists have found that most fish do sleep, and as with humans, they don't always get the shut-eye they'd like. A new ...