Cockatoos know what is going on behind barriers ( University of Vienna ) How do you know that the cookies are still there although they have been placed out of your sight into the drawer? Alice Auersperg and her team from the University of Vienna and Oxford show that "object permanence" abilities in a cockatoo levels apes and four year old human toddlers. The researchers published their findings in the Journal of Comparative Psychology.
July 29, 2013 - EurekAlert!