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Seals only sleep with half their brain when they’re out at sea
Northern fur seals mostly sleep with half their brain while they鈥檙e at sea, but sleep with all their brain while on land 鈥� unlike any other animal studied
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Northern fur seals mostly sleep with half their brain while they鈥檙e at sea, but sleep with all their brain while on land 鈥� unlike any other animal studied
Several types of dangerous bacteria鈥�,鈥� carrying genes that our antibiotics cannot fight鈥�,鈥� are travelling the world hidden in ships' ballast tanks