Definition of "knuckle-walking" []

• A form of locomotion of some primates in which they move on all fours with pressure being taken by the knuckles. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Our earliest primate ancestors were no exception, whether moving in trees or knuckle-walking on the ground."
• "Lovejoy's analysis also shows that the bones in Ardi's hands and wrists were not adapted to knuckle-walking, a style of movement common to gorillas and chimpanzees, and assumed to have been used by the species that was ancestral to apes and humans."
• "N. C.'s Republican party is loaded with precisely the kind of knuckle-walking club thumpers who hate McCain for his "liberalness" and, among those who aren't, there is a lot of concern about his temper."