http://www.huffingtonpost.com/2012/01/31/elephant-size-24-million-_n_1243835.htmlHere's an interesting article from Huffington Post, regarding research from Australia's Monash University. In their study, researchers looked at numerous generations for 28 mammals and the related size change; looking for the "speed limit" of large-scale evolution. Interesting, it took "24 million generations for the elephant to get so big, but it only takes 100,000 generations to evolve into a significantly smaller size". Its pretty interesting that there are different speeds for increasing in size as compared to decreasing in size.
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