Saturday, November 24, 2012

Living Fossil

Longtail Tadpole Shrimp

The Long-tail Tadpole Shrimp is a freshwater crustacean resembling a miniature horseshoe crab. It is one of the oldest animal species still in existence. The Long-tail Tadpole Shrimp is considered a living fossil because its basic prehistoric morphology has changed little in the last 70 million years, exactly matching ancient fossils.

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