bamboo

Up until 300,000 years ago, a giant ape named Gigantopithecus, which stood more than 10 feet tall and weighed 1,200 pounds, roamed around in Asia eating Bamboo and similar plants. – WTF Fun Facts

Source: https://www.smithsonianmag.com/science-nature/did-bigfoot-really-exist-how-gigantopithecus-became-extinct-16649201/