Comment on Open Thread: December 2009

Sat, 05 Dec 2009 08:31:55 GMT

I also looked for a while and had little luck. I did find though that the brain-to-body-mass ratios for two of the smartest known species of birds -- the Western Scrub Jay, and the New Caledonian Crow -- are comparable to those of the chimps. These two species have shown very sophisticated cognition.

Discuss