venerdì 1 luglio 2016

NYT Science: A Roller Coaster in the Sky for Frigatebirds

A Roller Coaster in the Sky for Frigatebirds
By NICHOLAS ST. FLEUR

The seabirds, which can stay aloft for months without coming down, were found by researchers to use clouds to gain altitude.

Published: July 2, 2016 at 06:00AM

via NYT Science http://ift.tt/298h00b