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Podcast: γ¬γ’γΈγ§γθ±δΌθ©± Daily News Article Podcast
Episode: Jellyfish sleep similar to humans despite having no brain, study finds
Description: Sleep is usually associated with complex animals with brains and nervous systems. But new research suggests it may be far older and far more basic than previously thought.
Scientists at Bar Ilan University in Israel studying jellyfish and sea anemones have found evidence of sleep-like states in animals without brains, helping explain why sleep may have evolved in the first place.
Unlike humans and other mammals, jellyfish have no brain and no eyes. Instead, it has a simple nerve net, a loose network of neurons distributed throughout its body. Despite this basic anatomy, scientists have found that jellyfish follow regular...