Did Bigfoot Really Exist? How Gigantopithecus Became Extinct Smithsonian (blog) Sasquatch. Yeti. The Abominable Snowman. Whatever you want to call it, such a giant, mythical ape is not real—at least, not anymore. But more than a million years ago, an ape as big as a polar bear lived in South Asia, until going extinct 300000 years...