Ancient tadpole shrimp not really a living fossil

By Tanya LewisLiveScienceTadpole shrimp aren't the living fossils they appear to be, new research suggests.Darwin coined the term "living fossil" in "On the Origin of Species" to describe organisms that appear not to have evolved much over millions of years. The coelacanth, the horseshoe crab and the ginkgo tree have all been called living fossils. Some scientists reject the term, because it impli...

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