SLEEP patterns vary widely among species. The most common assumption is that sleep is a requirement for all those with a brain since sleep is important to a number of brain functions, including how neurons communicate with each other. But is sleep only dedicated to those with a brain? Do jellyfishes also go to sleep?
Chronic Fatigue Syndrome: Symptoms, Causes and Treatments usnews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from usnews.com Daily Mail and Mail on Sunday newspapers.
Hero Motocorp Share Price Graph and News stockmaniacs.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from stockmaniacs.net Daily Mail and Mail on Sunday newspapers.