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RE: Tree of Life: Ass-to-mouth development - Jaws, bones and nightmare protostomes.
I’m just glad we didn’t follow the same evolutionary direction as the strange worm. I was a little worried to learn that asses and mouths are so closely linked, but at least they are differentiated.
Hahahah... all it took to define us from the worms in the mud is the order of development of our asses. Amazing.