giovedì 16 luglio 2015

NYT Science: Polar Bears Don’t Go Into Hibernation-Like State in Summer, Researchers Say

Polar Bears Don’t Go Into Hibernation-Like State in Summer, Researchers Say
By JAMES GORMAN

It was long thought that polar bears’ body temperatures dropped to conserve energy during lean summers, but a multiyear study in the Beaufort Sea found no evidence of such a change.

Published: July 17, 2015 at 06:00AM

via NYT Science http://ift.tt/1RBU5OM