[DOC] [TLE] Knuckle-walking - Wikipedia [PAR] Their knuckle-walking involves flexing the tips of their fingers and ... These are 
found in all chimpanzees but in only two out of five ... It has been suggested that 
chimpanzee knuckle-walking and gorilla knuckle-walking are... [DOC] [TLE] How do primates move around?  john hawks weblog [PAR] Feb 1, 2013 ... The diversification of the first primates from other early mammals took ... is 
essential for larger arboreal primates, which can move above only the largest 
branches. ... Knuckle-walking allows quadrupedal walking in chimpanzees and ... 
These apes have long forelimbs relative to their hindlimbs, and their... [DOC] [TLE] The Primates: Apes [PAR] Apes and humans differ from all of the other primates in that they lack external 
tails. ... roughly is in the shape of the letter Y. Monkeys only have four cusps on 
their lower molars. ... Because of their diminutive size, these members of the 
family Hylobatidae are also .... photo of a subadult male lowland gorilla knuckle 
walking. [DOC] [TLE] If upright walking is so energetically favorable, why do apes still ... [PAR] Jul 26, 2007 ... There is such a thing as a stupid question and the following is a prime example of 
... down to our pelvis which has a very different structure compared to other great 
apes. ... Apes still knuckle-walk because that's part of the ecological niche they 
occupy. ... Bipedal locomotion is perhaps one of only traits [DOC] [TLE] It's all in the wrist: Humans lack a knuckle-walking ancestor | EARTH ... [PAR] Though counterintuitive, scientists have turned their attention away from the feet 
and to the wrist and ... African apes are humans' closest living relatives, and 
because these apes ... Kivell and others suggest that the so-called knuckle-
walking features that humans ... Kivell acknowledges that this study is only the 
beginning. [DOC] [TLE] Knuckle-walking and the evolution of hominoid hands [PAR] Knuckle-walking is a pattern of digitigrade locomotion unique to ... Only 
chimpanzees and gorillas are specially adapted ... distinct from those of Pongo, 
their nearest relative among extant apes. ... other primates, are complex organs 
which .... 2 These specimens were embalmed at the Department of Anatomy, 
University of... [DOC] [TLE] Independent evolution of knuckle-walking in African apes shows that ... [PAR] Aug 25, 2009 ... First, these features should be common to all African apes. .... Although there are 
other putative knuckle-walking features of the wrist and ... Our data cannot reject 
the hypothesis that knuckle-walking evolved only once at the... [DOC] [TLE] Did Early Hominids Walk on Their Knuckles? | Science | AAAS [PAR] Mar 24, 2000 ... When chimps and gorillas scamper on the ground, they curl their long fingers, ... 
knuckle walking in modern chimps and gorillas reported not only the ridges on ... 
Lucy herself wasn't a knuckle walker, notes Richmond; rather, these wrist ... wrist 
features that are lacking in modern humans and other primates. [DOC] [TLE] Anthropologist's Journal: Walk this Way: Why Humans Walk on Two ... [PAR] only has one unique type of organismthe species. Kingdom ... Even though 
monkeys, apes, and humans look different, they have a lot in common. ... This is 
called knuckle-walking, because it looks like they are walking on their knuckles. 
... These bipedal primates are called hominids, and they belong to the. Hominid... [DOC] [TLE] The emergence of humans - Understanding Evolution [PAR] Humans share many traits with other apes, and those other "apes" (i.e., ... But as 
these taxa appear on the evogram, "Australopithecus" is not a natural ... not just 
mainly terrestrial but habitually bipedal, unlike their knuckle-walking relatives. [DOC] [TLE] Why do gorillas engage in knuckle-walking when its a primate like ... [PAR] Nov 24, 2010 ... But gorillas sometimes do knuckle-walking, while humans don't. ... Different 
primates have several different methods of moving, just like birds... [DOC] [TLE] These fists were made for walking : Nature News [PAR] Mar 23, 2000 ... The African great

Question: Only gorillas & these other primates walk on their knuckles
Answer: Chimpanzees