Mar 20, 2022 · A crocodile is a large amphibious reptile.It lives mostly in large tropical rivers, where it is an ambush predator.One species, the Australian saltie, also travels in coastal salt water.In very dry climates, crocodiles may aestivate and sleep out the dry season.. The modern type of crocodile appeared first in the Eocene period, but its ancestors go much further back, to …

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Oct 07, 2019 · Saibal/Getty Images. Naturalists divide the class of birds, Greek name "aves," into two infraclasses: "palaeognathae" and "neognathae."Oddly enough, paleaeognathae, or "old jaws," includes birds that first evolved during the Cenozoic Era, after the dinosaurs went extinct—mostly ratites such as ostriches, emus, and kiwis.The neognathae, or "new jaws," can trace their roots …

Feb 15, 2019 · During the Early Triassic Epoch, Washington, D.C. was situated in a massive supercontinent called Pangea Ian Webster/Ancient Earth