lunedì 24 agosto 2015

NYT Science: Two Panda Cubs at the National Zoo Present Special Problems

Two Panda Cubs at the National Zoo Present Special Problems
By KATIE ROGERS

Raising healthy twins is a unique problem for the zoo’s mother panda: Only two mother bears have successfully done so in captivity.

Published: August 25, 2015 at 06:00AM

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