New Saber-tooth Cat discovered. - Quick Science News (Saber-toothed cat • Nature )

News Source :https://scienceblog.com/522612/newly-identified-saber-toothed-cat-is-one-of-largest-in-history/
Video taken from : https://www.youtube.com/watch?v=pxmw-WeGGyU

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What is a Sabre-Toothed Cat?
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A saber-toothed cat (alternatively spelled sabre-toothed cat[1]) is any member of various extinct groups of predatory mammals that are characterized by long, curved saber-shaped canine teeth which protruded from the mouth when closed. The saber-toothed cats have been found almost worldwide from the Eocene epoch to the end of the Pleistocene epoch 42 million years ago (mya) – 11,000 years ago (kya).[2][3][4]

One of the best-known genera is Smilodon, the species of which, especially S. fatalis, are popularly, but incorrectly, referred to as "saber-toothed tigers". However, usage of the word cat is in some cases a misnomer, as many species referred to as saber-toothed "cats" are not closely related to modern cats (Felidae). Instead, many members are classified into different families of Feliformia, such as Barbourofelidae and Nimravidae;[5] the oxyaenid "creodont" genera Machaeroides and Apataelurus; and two extinct lineages of metatherian mammals, the thylacosmilids of Sparassodonta, and deltatheroideans, which are more closely related to marsupials. In this regard, these saber-toothed mammals can be viewed as examples of convergent evolution.[6] This convergence is remarkable due not only to the development of elongated canines, but also a suite of other characteristics, such as a wide gape and bulky forelimbs, which is so consistent that it has been termed the "saber-tooth suite."[7]

Of the feliform lineages, the family Nimravidae is the oldest, entering the landscape around 42 mya and becoming extinct by 7.2 mya. Barbourofelidae entered around 16.9 mya and were extinct by 9 mya. These two would have shared some habitats.
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From Wikipedia