Until around 1900, the most accepted idea was that birds hibernated during the winter. We now know that many birds migrate. And not to the moon, as earlier observers thought. This Cool Video from Minute Earth discusses what we now know about bird migration.
Cool Video: Birds Don't Hibernate
Reviewed by Marc Chandler
on
January 25, 2014
Rating:
Reviewed by Marc Chandler
on
January 25, 2014
Rating:
