How a Saber-Tooth Marsupial Blinded Us With Its Bite – The New York Times

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Thylacosmilus was found in Argentina in 1926 when paleontologists excavated a fossil of an animal that looked extremely similar to Smilodon. After more Thylacosmilus fossils were revealed in South America, it became clear that the marsupial lacked the upper incisors that sit between the sharp dogs. The microscopic wear marks on the marsupial’s other teeth were likewise odd.

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