annelids

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27 05, 2017

What are segmented worms? Annelids, evolution, and biology

By |2019-01-27T20:52:49-08:00May 27th, 2017|Biology|0 Comments

An annelid, or segmented worm When did annelids evolve? Roundworms probably evolved into segmented worms, or annelids, about 545 million years ago. What's a roundworm? More about the Proterozoic All our [...]