It is widely believed that sleep is limited to animals with a central nervous system. From humans, to sharks to birds and bees, everyone goes to sleep. But a new research says that brainless...
Brainless Jellyfish Also Sleeps, Study Finds
It is widely believed that sleep is limited to animals with a central nervous system. From humans, to sharks to birds and bees, everyone goes to sleep. But a new research says that brainless...