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It has been thought that megalodon became extinct around the end of the Pliocene, about 2.6 Mya; [21] [22] claims of Pleistocene megalodon teeth, younger than 2.6 million years old, are considered unreliable. [22] A 2019 assessment moves the extinction date back to earlier in the Pliocene, 3.6 Mya. [23]
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There is little evidence of human interaction with extinct Australian megafauna, with one notable exception being the burning of Genyornis (a type of giant dromornithid bird related to ducks) eggshells. [117] Megafauna species may have survived considerably later in New Guinea, until the Last Glacial Maximum. [118]
One of the largest specimens from the Early Pleistocene of Uruguay, possibly belonging to Devincenzia, would have weighed up to 350 kilograms (770 lb). [5] [6] Their closest modern-day relatives are believed to be the 80-centimetre-tall (31 in) seriemas. Titanis walleri, one of the larger species, is known from Texas and Florida in North America.
Scientists don't know for sure whether the megalodon ever lived in Mississippi even if some of its teeth were found in the Magnolia State. National Megalodon Day is June 15. Here are 5 things to ...
The African bush elephant (foreground), Earth's largest extant land animal, and the Masai ostrich (background), one of Earth's largest extant birds. In zoology, megafauna (from Greek μέγας megas "large" and Neo-Latin fauna "animal life") are large animals. The precise definition of the term varies widely, though a common threshold is ...
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Jurassic Park is a 1990 science fiction novel written by Michael Crichton; [2] it is a cautionary tale about genetic engineering that presents the collapse of a zoological park which showcases genetically recreated dinosaurs to illustrate the mathematical concept of chaos theory [3] and its real-world implications.