External body dimensions ofPan paniscus andPan troglodytes chimpanzees

  title={External body dimensions ofPan paniscus andPan troglodytes chimpanzees},
  author={Harold Jefferson Coolidge and Brian T. Shea},
Postcranial skeletal studies have demonstrated thatPan paniscus is a more gracile animal thanPan troglodytes, with different arm to leg proportions. Published data on external body dimensions are extremely rare forPan paniscus, however. We present here a series of such measures for a sample ofpaniscus, and we compare these to similar measures forPan troglodytes. This comparison further clarifies the morphological distinctions between the two chimpanzee species, and indicates that bonobos have… 
Body composition in Pan paniscus compared with Homo sapiens has implications for changes during human evolution
Comparative data on the body composition of 13 bonobos measured during anatomical dissections and compared with Homo sapiens suggest that both females and males increased body fat, decreased relative muscle mass, redistributed muscle mass to lower limbs, and decreased relative mass of skin during human evolution.
Morphological variation in adult chimpanzees (Pan troglodytes verus) of the Taï National Park, Côte d'Ivoire.
The combination of cranial and postcranial data provides a clearer picture of chimpanzee intraspecific and interspecific variation than can be gained from either data set alone.
The Great Divides: Ardipithecus ramidus Reveals the Postcrania of Our Last Common Ancestors with African Apes
Evidence from Ardipithecus ramidus now suggests that the last common ancestor lacked the hand, foot, pelvic, vertebral, and limb structures and proportions specialized for suspension, vertical climbing, and knuckle-walking among extant African apes.
Femur length, body mass, and stature estimates of Orrorin tugenensis, a 6 Ma hominid from Kenya
This approach has been applied to 6 Ma hominid femoral remains from the Tugen Hills, Kenya, attributed to Orrorin tugenensis, and it is suggested that the best-preserved young adult individual probably weighed approximately 35–50 kg.
Insights into the musculature of the bonobo hand
The functional anatomy of the bonobo hand is investigated using a unique sample of eight bonobo cadavers, along with one chimpanzee and one human (Homo sapiens) cadaver, showing that the force‐generating capacity for most functional groups of the extrinsic and intrinsic hand muscles in bonobos is largely similar to that of humans.
Latest news from the bonobos: Pan paniscus myths and realities
Bonobos are our closest living relatives along with chimpanzees. They attract much attention from anthropologists who want to better understand our primate origins and more recently from the public
Sexual dimorphism in Homo erectus inferred from 1.5 Ma footprints near Ileret, Kenya
The results indicate that East African Homo erectus was moreDimorphic than modern Homo sapiens, although less so than highly dimorphic apes, suggesting that the Ileret footprints offer a unique window into an important transitional period in hominin social behavior.
Within arm's reach: Measuring forearm length to assess growth patterns in captive bonobos and chimpanzees.
It is shown that bonobos exceed chimpanzees in terms of forearm length and that sexual dimorphism in forearm length is pronounced in chimpanzees, but not in bonobos, and the novel method offers an alternative to obtain morphometric measures and facilitates longitudinal studies on somatic growth.
Impressive Arboreal Gap-Crossing Behaviors in Wild Bonobos, Pan paniscus
Most primates are arboreal, and the current context of habitat fragmentation makes gap- and road-crossing behaviors more and more common. Great apes may try to avoid behaviors such as arboreal


Skeletal differences between pygmy (Pan paniscus) and common chimpanzees (Pan troglodytes).
It is concluded that pygmy and common chimpanzees are morphologically distinct and implications for hominoid evolution are discussed.
Relative growth of the limbs and trunk in the African apes.
  • B. T. Shea
  • Environmental Science, Biology
    American journal of physical anthropology
  • 1981
Results indicate that some postcranial relative growth patterns are very similar in the three species, suggesting differential extrapolation of a common growth pattern, whereas for other proportion comparisons the growth trends differ markedly among the species, producing distinct shape differences in the adults.
Grouping of the pygmy chimpanzees
The group formation inPan paniscus is flexible as inP. troglodytes. A group consisted of 16.9 chimps on the average, and a large groups of more than 30 chimps were often observed. The most frequent
Preliminary information of the pygmy chimpanzees (Pan paniscus) of the Congo basin
It proved possible to make a field study of the species in this region and local information was collected on the ecology of pygmy chimpanzees in the Lac Tumba Region, Zaire.
The taxonomic status of the bonobo chimpanzee
It is concluded that not enough data from the field on both bonobo and rainforest-living common chimpanzees exist to classify the bonobo, but using Simpson's ('61) evolutionary species definition and the preliminary ecological data available, a subspecies designation for theBonobo chimpanzee is supported.
Locomotor behavior of Pan paniscus in Zaire
Bonobos were found to be both arboreal and terrestrial in their daily activities, and have significant components of armswinging, diving, leaping, and bipedalism in their locomotor repertoire.
Studbook of Pan paniscus Schwarz, 1929.
  • A. Guzen
  • Computer Science
    Acta zoologica et pathologica Antverpiensia
  • 1975
An approximate outline has been given of the knowledge of this animal since the description given in 1929 by Schwarz, which considers the species to be the primate closest to man.
Social behavior of the pygmy chimpanzees
The pygmy chimp’s society may be said to be integrated by the male/female affinity, little differentiated by sex in the grouping and the affinitive relations, and with high inter-individual tolerance and coherence.
Le Pare zoologique du bois de Vincennes possede actuellement un specimen vivant de chimpanze pygmoe : Pan satyrus paniscas Schwarz. C'est un jeunem le en excellent etat de sante (PI. I). La presence
A pilot study on the ecology of pygmy chimpanzees, Pan paniscus
  • 1979