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Cave hyenas (Crocuta (crocuta) spelaea and Crocuta (crocuta) ultima) are extinct species or subspecies of hyena known from Eurasia, which ranged from Western Europe and West Asia to eastern Siberia, East Asia and Southeast Asia during the Pleistocene epoch. They are well represented in many caves, primarily dating to the Last Glacial Period. Cave hyenas served as apex predators that preyed on large mammals (primarily large ungulates, such as wild horse, steppe bison and aurochs), and were responsible for the accumulation of hundreds of large Pleistocene mammal bones in areas including horizontal caves, sinkholes, mud pits, and muddy areas along rivers. It was one of the main apex predators of northern Eurasian ecosystems alongside the cave lion (Panthera spelaea), with the two species likely engaging in hostile conflict over carcasses. Much like African spotted hyenas, they likely lived in clans. Often treated as subspecies or populations of the living African spotted hyena (Crocuta crocuta) to which they were closely related and heavily resembled (though considerably larger in size), genetic evidence from the nuclear genome suggests that Eurasian Crocuta populations (including the west Eurasian Crocuta crocuta spelaea and Asian Crocuta crocuta ultima) were highly genetically divergent from African populations (having estimated to have split over 1 million years ago), with evidence suggesting limited interbreeding between Eurasian cave and African spotted hyenas. Some authors have suggested that the two subspecies should be raised to species level as Crocuta spelaea and Crocuta ultima. Cave hyenas coexisted in Europe alongside both Neanderthals and modern humans. Evidence suggests that they consumed the remains of Neanderthals at least on occasion, with cave hyenas also being recorded in cave art. The cause of the cave hyena's extinction is not fully understood, though it could have been due to a combination of factors, including human activity, diminished quantities of prey animals, and climate change. [URL=https://en.wikipedia.org/wiki?curid=8543506]View More On Wikipedia.org[/URL]