Fossil Halls: Vertebrate Evolution Exhibition Materials for all ages Jaws, grasping hands, three-toed feet, placentas, watertight eggs, eye sockets near the snout—explore these and other evolutionary branching points of vertebrate evolution.
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		BioSnapshot: Evolution in Action: Cane Toads Article for grades 6 through 12 Since the 1935 introduction of cane toads to Australia, the reptiles have invaded one million square kilometers of the continent—and been linked to the shrinking head sizes of Australian snakes.
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