Wild Things: Yeti Crabs, Guppies and Ravens

Tree killers and the first beds ever round up this month in wildlife news

(Yva Momatiuk & John Eastcott / Minden Pictures)

Bedding Down

(Image courtesy of Marion Bamford)
Early humans knew the importance of a good night’s sleep. Archaeologists led by the University of the Witwatersrand uncovered the oldest-known mattress, in a South African rock shelter. Made of sedges and grasses, the 77,000-year-old bedding held laurel leaves, which emit insect-killing chemicals, like a prehistoric mosquito net.

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