Jellyfish sleep like humans — even though they don’t have brains. The findings bolster a theory that sleep evolved, at least in part, to protect the DNA in individual nerve cells, helping to repair damage that builds up while animals are awake.

Phys.org - latest science and technology news stories

• 11d ago

What an ancient jellyfish can teach us about the evolution of sleep

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Daily briefing: Animals without brains sleep too — hinting at why we sleep at all

Nature

• 37d ago

Daily briefing: Animals without brains sleep too — hinting at why we sleep at all

Jellyfish seem to sleep in ways strikingly similar to humans, despite not having a brain. Plus, US lawmakers have pushed back on proposed cuts to science and why cancer can come back years after successful treatment. Jellyfish seem to sleep in ways strikingly similar to humans, despite not having a brain. Plus, US lawmakers have pushed back on proposed cuts to science and why cancer can come back years after successful treatment.

Scientists discover that jellyfish sleep like humans and may explain origin of sleep

Times of India

• 8d ago

Scientists discover that jellyfish sleep like humans and may explain origin of sleep

Science News: Sleep appears to have emerged far earlier in animal evolution than previously thought, according to new research examining two brainless marine specie.

Jellyfish sleep like humans — even though they don’t have brains. The findings bolster a theory that sleep evolved, at least in part, to protect the DNA in individual nerve cells, helping to repair damage that builds up while animals are awake.

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What an ancient jellyfish can teach us about the evolution of sleep

Daily briefing: Animals without brains sleep too — hinting at why we sleep at all

Scientists discover that jellyfish sleep like humans and may explain origin of sleep