Purpose
See also: Human skeletal changes due to bipedalismThe brow ridge functions to reinforce the weaker bones of the face in much the same way that the chin of modern humans reinforces their comparatively thin mandibles. This was necessary in pongids and early hominids because of the tremendous strain put on the cranium by their powerful chewing apparatuses, which is best demonstrated by any of the members of the genus Paranthropus. The brow ridge was one of the last traits to be lost in the path to modern humans, and only disappeared with the development of the modern pronounced frontal lobe. This is one of the most salient differences between Homo sapiens and Homo neanderthalensis.
Read more about this topic: Supraorbital Ridge
Famous quotes containing the word purpose:
“And the purpose of the many stops and starts will be made clear:
Backing into the old affair of not wanting to grow
Into the night, which becomes a house, a parting of the ways
Taking us far into sleep. A dumb love.”
—John Ashbery (b. 1927)
“A doctrine serves no purpose in itself, but it is indispensable to have one if only to avoid being deceived by false doctrines.”
—Simone Weil (1909–1943)
“Art for art’s sake, with no purpose, for any purpose perverts art. But art achieves a purpose which is not its own.”
—Benjamin Constant (1767–1834)