Wild Things: Yeti Crabs, Guppies and Ravens- page 2 | Science | Smithsonian
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(Yva Momatiuk & John Eastcott / Minden Pictures)

Wild Things: Yeti Crabs, Guppies and Ravens

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

How Ravens Say "Please Come Here"

raven
(Yva Momatiuk & John Eastcott / Minden Pictures)
The corvids—jays, crows and ravens—make tools, cooperate and hide food from potential thieves. Now researchers in the Austrian Alps have observed ravens gesturing. In male-female pairs, one bird picked up a stick or bit of moss and pointed or waggled it. The other then approached. It’s a first for non-apes, the biologists say, evidence that corvids “rival even primates in many social cognitive domains.”

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