A Brandeis University shows that African grey parrot understands zero
July 09, 2005 — Filed in: Parrot News
Zero is an abstract notion that humans don’t typically understand until ages 3 or 4.
City Parrots
Urban Parrot Conservation
Page 1 of 1 pages
Your donation allows us to expand our activities to preserve Parrots in urban environments.
Seen the Scarlet Macaws? Mail us!
