Bone Diggers
Anatomy of Thylacoleo
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Anatomy of Thylacoleo

One of Australia's most fantastic beasts, the extinct Thylacoleo carnifex, or "meat-cutting marsupial lion," possessed a host of physical traits unseen in any single creature alive today. These included features especially suited to a carnivorous hunter, including retractable, catlike claws, a kangaroo's tail, and jaw muscles that delivered a bite stronger than a lion's. Altogether, says paleontologist Rod Wells, Thylacoleo resembled something designed by committee. In this interactive, learn more about the marsupial lion's singular anatomy and what it reveals of the animal's predatory life in Pleistocene Australia.—Rima Chaddha

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