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Scientists observe a 300-million-year-old brain rhythm in several animal species
- January 23, 2026 at 4:30 PM
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Sleep is a universal biological state that allows all animals, from mammals to amphibians, fish and even insects, to restore their energy and consolidate knowledge that can contribute to their survival. Neuroscientists and zoologists have been investigating the biological underpinnings of sleep and its vital functions for centuries, more recently by measuring the brain activity of animals or people while they are asleep.
Originally published at Phys.org