Most dogs will eat just about anything. But, that wasn't always the case. The domestic dog's ancestor, the gray wolf, only ate meat. And a new report suggests hanging out with humans ? and our garbage ? may have helped them evolve to digest a wide range of foods.
Source: http://www.npr.org/blogs/thesalt/2013/01/23/170103080/in-order-to-live-with-people-canines-evolved-to-love-starchy-foods?ft=1&f=1007
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