However, its success is tied to sufficient habitat, which expands in cooler and more arid climate. Subfossil remains have been found, for example at Rocky Arroyo in the Guadalupe Mountains and Shelter Cave, New Mexico, where sufficient habitat no longer exists. The bones date found from the end of the last ice age to not much more than 8000 BC.
Its success is contingent on suitable habitat, which expands in cooler and drier climates. Subfossil remains have been discovered, such as at Rocky Arroyo in the Guadalupe Mountains and Shelter Cave, New Mexico, where suitable habitat no longer exists. The bones found date back from the end of the last ice age to roughly 8000 BC.