Oldest common ancestor of spiders, scorpions, horseshoe crabs found in Burgess Shale. Neat picture!
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Oldest common ancestor of spiders, horseshoe crabs and scorpions found in Burgess Sha
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Originally posted by Rushing Jaws View PostDoes the article or its title imply that other crabs have a different ancestry ? Spiders give me the creeps, but they are amazing creatures to have survived so long.
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