Sabre-toothed tiger

James St. John/Flickr

Smilodon fatalis (saber-toothed tiger) (Upper Pleistocene; California, USA). Smilodon fatalis Leidy, 1869 saber-toothed tiger skeleton from the Upper Pleistocene of California, USA (public display, Sternberg Museum of Natural History, Hays, Kansas, USA).