Megalodon is the largest shark that’s ever existed, and according to Hollywood it’s alive and well. But according to scientists, it’s definitely extinct, and it was probably thanks to its smaller cousins, great white sharks.
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Sources:
Megalodon:
https://peerj.com/articles/6088/
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0091419
https://www.ncbi.nlm.nih.gov/pubmed/23066865
Sevengills:
https://www.nature.com/articles/s41598-018-37576-6
http://lajamjournal.org/index.php/lajam/article/view/182
Image Sources:
https://commons.wikimedia.org/wiki/File:Megalodon_scale.svg
https://www.istockphoto.com/photo/dinosaur-fossils-megalodon-tooth-mosasaurus-tooth-spinosaurus-tooth-tyrannosaurus-rex-gm916329722-252151326
https://peerj.com/articles/6088/
https://commons.wikimedia.org/wiki/File:SN1994D.jpg
https://www.istockphoto.com/photo/the-great-white-shark-gm503988446-82899123
https://www.istockphoto.com/photo/a-broadnose-sevengill-shark-swims-in-the-aquarium-a-sevengill-shark-has-seven-pairs-gm1083283940-290615423
https://commons.wikimedia.org/wiki/File:170121-Sevengill-04_DSC0632.jpg
https://en.wikipedia.org/wiki/File:170121-Sevengill-02_DSC0627_(1).jpg
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