The Asian apes, more than any other, are restricted to an arboreal habitat. They are
consequently an important model in the interpretation of the morphological commonalities of …

Quantitative studies on the positional behavior of members of the Hominoidea are compared
in order (1) to identify consistencies across the superfamily,(2) to contrast ape positional …

Studies of positional behavior, that is the locomotor and postural behavior of an animal, are
generally undertaken in order to understand how variations in postcranial musculoskeletal …

Observational data were collected on the positional behavior of habituated adult female
orangutans in the rain forest of the Kutai National Park, East Kalimantan, Indonesia. Results …

This study examined the locomotor behavior of wild Bornean orangutans (P. p. wurmbii) in
an area of disturbed peat swamp forest (Sabangau Catchment, Indonesia) in relation to the …

Vertical climbing has played an important role in theories about the evolution of habitual
bipedalism in early hominids and of locomotor specialization in hominoids. However …

Reconstructing the transition to bipedality is key to understanding early hominin evolution.
Because it is the best‐known early hominin species, Australopithecus afarensis forms a …

Orangutans are the largest habitually arboreal mammal. For them, as for all arboreal
mammals, access to the abundant fruits and narrowest gaps found among the thin …

The positional behavior of habituated adult chimpanzees and baboons was observed for
784 hr in a year‐long study. Comparisons between species were made to establish the …

Objectives Great apes provide a point of reference for understanding the evolution of
locomotion in hominoids and early hominins. We assessed (1) the extent to which great …