"Gigantopithecus" appears to have been a generalist herbivore of C3 forest plants, with the jaw adapted to grinding, crushing, and cutting through tough, fibrous plants; and the thick enamel functioning to resist foods with abrasive particles such as stems, roots, and tubers with dirt. Some teeth bear traces of fig family fruits, which may have been important dietary components. It primarily lived in subtropical to tropical forest, and went extinct about 300,000 years ago likely because of the retreat of preferred habitat due to climate change, and potentially archaic human activity. "Gigantopithecus" has become popular in cryptozoology circles as the identity of the Tibetan yeti or the American bigfoot, humanlike monsters in local folklore.