Group sleeping can impact when animals sleep, how long they sleep for, and how deeply they sleep. For example, groups of meerkats time their sleep according to "sleep traditions"; olive baboons sleep ...

Some animals have evolved sleep strategies so bizarre they barely resemble sleep at all, and the reasons behind them reveal ...

Sharks used to figure prominently in my nightmares: coming after me in the ocean, rivers, swimming pools. But after spending some time with these elusive creatures in 2015, a more compelling question ...

Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep. Sleep is universal "even though it's actually very ...

This article originally appeared in Knowable Magazine. 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 ...

Group sleeping can impact when animals sleep, how long they sleep for, and how deeply they sleep. For example, groups of meerkats time their sleep according to “sleep traditions”; olive baboons sleep ...

What has puzzled researchers and philosophers for many centuries is the ‘why’ of sleep, along with the ‘how’. We human animals know from experience that we need to sleep, and that the longer we go ...

Samsung’s latest smartwatch, the Galaxy Watch 4, runs a new OS codeveloped with Google. But, despite promises of better Google integration, it didn’t support Google Assistant when it launched. That ...

Fitbit is launching a new Sleep Profile feature for premium members that will categorize users as one of six animal characters, the company announced today. Users are grouped based on 10 sleep metrics ...