The ape was Gigantopithecus and it lived in the highlands of Asia. It only went extinct 20,000 years ago. For decades the only fossil specimens found were its big huge teeth, but then a partial skeleton was found in a cave alongside skeleton-shards of Homo sapiens. There was also a huge chiseled stone ring in the cave that scientists think was a collar.
I do not know why I didn’t know about this before.