07/12/2017

One wet winter can shake up San Francisco Bay's invasive species

For many Californians, last year's wet winter triggered a case of whiplash. After five years of drought, rain from October 2016 to February 2017 broke more than a century of records. In San Francisco Bay, Smithsonian Environmental ...

Crafty crows know what it takes to make a good tool

Biologists at the University of St Andrews have discovered how New Caledonian crows make one of their most sophisticated tool designs - sticks with a neatly-shaped hooked tip.

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