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Oscaravis
''Oscaravis olsoni'' (also known as the Cuban teratorn), of the teratorn family, was a large, predatory bird that roamed the territory that is now modern-day Cuba before going extinct at the end of the Pleistocene era. Previously classified as ''Teratornis olsoni'', it has recently been granted a new genus due to its ecological isolation from others in the Ttratorn family, as well as differences in size and possibly behavior. Although no exact measurements can be stated, due to recent archaeological findings and the comparison of ''O. olsoni'' bone lengths with that of other teratorns, it has been concluded ''Oscaravis olsoni'' would have had a body bigger than ''Taubatornis campbelli'' but smaller than ''Cathartornis gracilis''.
== Ecology==
''Oscaravis olsoni'' was most prominently located in modern-day Cuba, as well as the outlying islands at the time. Due to their massive size and wingspan, it was believed that many members of the Teratornithidae family, especially ''Oscaravis olsoni'', could travel to neighboring islands and continents, resulting in the establishing of new niches as well as fostering the speciation of teratorns. Unlike many in the Teratornithidae family, it is believed that ''Oscaravis olsoni'' was a primarily a carnivorous predator as opposed to a scavenger. The large, stocky build and short legs of some of the larger members of the teratorn family, including ''Argentavis magnificens'' (the largest of the teratorn family), pushed them to scavenging or simply waiting for prey to pass. However, the Cuban teratorn was believed to have survived on a diet of lizards, fish, and smaller birds, which it attacked using aerial assaults. Following the methodology of attacks, teratorns’ primary weapon was their large mouth, which it could use to swallow prey whole.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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