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Andy Thomson gives his talk titled 'Why We Believe in Gods' at the American Atheist 2009 convention in Atlanta, Georgia. Filmed and edited by Josh Timonen. See more at http://RichardDawkins.net Also see Richard Dawkins talk from this convention: http://www.youtube.com/watch?v=xbza-UtseE0

For more than a century, neuroscientists believed that the brains of humans and other mammals differed from the brains of other animals, such as birds (and so were presumably better). Researchers have now found that a comparable region in the brains of chickens concerned with analyzing auditory inputs is constructed similarly to that of mammals.