New clues from ancient caves reveal when the giant ape vanished and what ultimately doomed it.

Gigantopithecus blacki, the largest ape ever known, has long been a prehistoric mystery. We have teeth, a few jawbones, and a nagging question: how could an animal that massive simply vanish?
A study published in Nature tackled it by dating fossil teeth and the cave sediments around them from a network of caves in southern China. Using several modern dating techniques, the team pinned down the extinction window and compared it with signs of shifting habitats.
The picture that emerges is a slow squeeze, not a sudden disaster: climate-driven forest changes that left a huge, highly specialized ape with too few good options.








