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Thursday, June 02, 2005

Jurassic fashion trends

via Pharyngula

"...There was a great flowering of sauropods in the Jurassic, and in addition to the gigantic long-necked forms we see in our movies and gas station signs, there were medium-sized ones, small ones, and ranges of neck lengths, like the short-necked Brachytrachelopan mesai. Some grazed on tall trees, and some browsed on low bushes. And they were all built on the same saurian plan, with tricky little detailed affinities in the structures of their bones, and they all went extinct, and the Designer hasn't bothered to poof any new ones into existence since.

It's almost as if they were all related, with a successful form radiating into many new niches, and once the root stock was extinguished, there was no way new related forms could arise."