Nimravides the similarities between them at first glance, based on autapomorphies in the skeleton, the two animals are too different to be classified as species of the same genus, and thus, "Nimravides" remains separate as its own genus within the Homotherini. Nimravides Nimravides is a genus of extinct saber-toothed cats that lived in North America during the middle and late Miocene, between 13.6 and 4.9 Ma. Despite its scientific name, "Nimravides" does not belong to the Nimravidae, but is a true cat, belonging to the family Felidae. "Nimravides catacopsis", one of the largest and latest species, was quite large, measuring at
Felidae Conservation Fund Yellowstone ecosystem by examining predation, behavior associated with human development, and interactions with wolves, grizzly bears and black bears. The project is operated by Craighead Beringia South with support from Felidae. The Southern California Puma Project examines the progress and implications of habitat fragmentation as puma populations in Southern California become more isolated. Felidae is collaborating with UC Davis Wildlife Health Center on this study, which has radio-collared more than 50 pumas over 7 years. The Asiatic Cheetah Project in Iran is the first detailed ecological study of the critically endangered Asiatic cheetah. Researchers in Northern Iran work to gain