Gigantopithecus
Gigantopithecus (in Greek, gigantas meaning “giant” and pithecus meaning “ape”) is an extinct genus of ape that existed from roughly one million years to as recently as three-hundred thousand years ago, in what is now China, India, and Vietnam, placing Gigantopithecus in the same time frame and geographical locality as numerous hominin species. The fossil record suggests that the Gigantopithecus blacki species were the tallest and biggest apes that ever lived, standing up to 3 metres (9.8 ft) and weighing as much as 540 kilograms (1,200 lb).
The earliest Gigantopithecus remains discovered by an anthropologist were found in 1935 by Ralph von Koenigswald in an apothecary shop. Fossilized teeth and bones are often ground into fine powder and used in some branches of Traditional Chinese remedies. Von Koenigswald named the theorized species Gigantopithecus. Ever since then, relatively a small number of fossils of Gigantopithecus have been found.
A popular theory used by Bigfoot hunters and researchers alike to provide a valid zoological identity for Bigfoot, the Abominable Snowman, Yeti and Sasquatch creatures is that they are none other than the Gigantopithecus, still alive in relict populations throughout the world.
So the question stands, could a Gigantopithecus or his descendants be the actually source of the Yeti or Bigfoot tales.
