Some of them are mentioned by Thorpe et al. As the aspect of knuckle-walking in our biohistory, although being central in several respects, is not a hypothesis in itself, it was only skimmed in this context as justified above. Feeding ecology of the pygmy chimpanzee Pan paniscus of Wamba.
Am Anthropol. Hence, it seems likely that, in wading ancestors, after many generations, longer legs were selected for until they became so long that they gradually lost their suitability for fast quadrupedal locomotion. Der Weg zu Homo sapiens.
Meanwhile, it has been established that all main hypotheses published until the last decade of the past century are outdated, at least with respect to some of their main ideas: Firstly, they were focused on only one cause for the evolution of bipedality, whereas the evolutionary process was much more complex.
Old World monkey and ape species and their ecological or behavioural relationship to a shore or water in the wild except for dependence from drinking water. Eat tadpoles from streams b 7. This is in general agreement with Hunt's interpretation of Australopithecus afarensisstating terrestrial and arboreal functions.
Ape species known to be predominantly vegetarian seem to easily gain a precious animal protein supplement to their vegetarian food by taking a quadrupedal walk on the shore Fig. It has been recognised from molecular data e. Human evolution. Agile gibbon Hylobates agilis Prefers dry ground forest but also uses swamp forest b
Richmond et al. London: Academic; The arboreal adaptations were used for collecting different kinds of food during the day and for nesting at night, while the ground was used more for travelling, for collecting other kinds of food including resources rich in precious animal protein.