The birds are arriving in the Arctic up to 13 days earlier than they used to. But at a cost: hunger. Annie Sneed reports. -- Read more on ScientificAmerican.com
Crows are what's known as "partial migrants"—as cold weather approaches, some crows fly south whereas others stay put. And that behavior appears to be ingrained. Christopher... -- Read more on ScientificAmerican.com
The insects fashion and use "baffles"—sound controllers—made of leaves to produce sound more efficiently. Jason G. Goldman reports. -- Read more on ScientificAmerican.com