"Paranthropus" first appeared roughly 2.7 million years ago. Most species of "Paranthropus" had a brain about 40 percent of the size of modern man. There was some size variation between the different species of "Paranthropus", but most stood roughly 1.3-1.4 m (4.26 to 4.59 feet) tall and were quite well muscled. "Paranthropus" is thought to have lived in wooded areas rather than the grasslands of the "Australopithecus".