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Smurfs on Steroids: The Scientific Shortcomings of Avatar

So what are the anal retenive geeks blabbing about Avatar? Can you blame astronomers and biologists who are unable to suspend their disbelief even for James Cameron's sacre bleu oeuvre.

Ray Villard of Discovery News digresses:

The biosphere of Pandora supports an extraterrestrial Serengeti of diverse creatures. Biological evolution certainly took a different road on Pandora, as expected.  Read more