Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Mammals are defined by how and what we eat every single day of our ...
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Bite by bite: How jaws drove fish evolution
If you're reading this sentence, you might have a fish to thank. Fish were the first animals to evolve jaws. They use their jaws primarily to eat, but also for defense, as tools—such as to burrow or ...
Whole skeleton of Dipterus, an extinct lungfish from the middle Devonian period. Specimen (UMMP 16140) from the University of Michigan Museum of Paleontology. ANN ARBOR—If you're reading this sentence ...
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