 "Aphelops" is thought to have been a browser on C3 plants, like the modern black rhinoceros, with its longer limbs adapted to traversing open, brushy country.Isotopic evidence suggests that, in the late Miocene, "Teleoceras" had limited intake on newly-emergent C4 grasses, but "Aphelops" continued to browse.This difference in feeding ecologies explains how they could coexist sympatrically across many environments for 13 million years.