crow intelligence

When it comes to the brain, bigger isn't always better.
Editor's note: This article was updated on Dec. 27 2014 to correctly state that the University of Aukland is in New Zealand
In the new study, Clayton and her Cambridge graduate student James Thom decided to test the stress hypothesis. First, they
HuffPost Senior Science Correspondent Cara Santa Maria speaks with John Marzluff about his research into crow intelligence and memory.