Origin of the human malaria parasite Plasmodium falciparum in gorillas
- Weimin Liu, Yingying Li, B. Hahn
- 23 September 2010
Biology
Nature
Findings indicate that P. falciparum is of gorilla origin and not of chimpanzee, bonobo or ancient human origin.
Multiple Diverse Circoviruses Infect Farm Animals and Are Commonly Found in Human and Chimpanzee Feces
- Linlin Li, A. Kapoor, E. Delwart
- 9 December 2009
Biology
Journal of Virology
It is shown that the genetic diversity of small circular DNA viral genomes in various mammals, including humans, is significantly larger than previously recognized, and frequent exposure through meat consumption and contact with animal or human feces provides ample opportunities for cyclovirus transmission.
Dominance, aggression and testosterone in wild chimpanzees: a test of the ‘challenge hypothesis’
- M. Muller, R. Wrangham
- 31 January 2004
Biology, Psychology
Animal Behaviour
Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
- K. Langergraber, Kay Prüfer, L. Vigilant
- 13 August 2012
Biology
Proceedings of the National Academy of Sciences…
The human–chimpanzee split is dated to at least 7–8 million years and the population split between Neanderthals and modern humans to 400,000–800,000 y ago, which suggests that molecular divergence dates may not be in conflict with the attribution of 6- to 7-million-y-old fossils to the human lineage and 400,,000-Y-old bones to the Neanderthal lineage.
Dominance, cortisol and stress in wild chimpanzees (Pan troglodytes schweinfurthii)
- M. Muller, R. Wrangham
- 1 February 2004
Biology, Psychology
Behavioral Ecology and Sociobiology
It is suggested that dominant chimpanzees experience significant metabolic costs that must be set against the presumed reproductive benefits of high rank, and metabolic stress may mediate the relationship between rank and cortisol in other social mammals.
Recent developments in the study of wild chimpanzee behavior
Results from field research conducted in the Kibale National Park, Uganda are focused on, giving special emphasis to five areas: social organization, genetics and behavior, hunting and meat-eating, inter-group relationships, and behavioral endocrinology.
The energetics of lactation and the return to fecundity in wild chimpanzees
- M. E. Thompson, M. Muller, R. Wrangham
- 1 November 2012
Biology
The metabolic load of lactation in chimpanzees is examined, suggesting that the slow reproductive pattern in wild chimpanzees results not only from the direct expense of milk production but also from the long period that mothers require to recover their physical condition in a food-limited environment.
Testosterone and paternal care in East African foragers and pastoralists
- M. Muller, F. Marlowe, Revocatus Bugumba, P. Ellison
- 22 January 2009
Biology
Proceedings of the Royal Society B: Biological…
Comparisons between two neighbouring Tanzanian groups that exhibit divergent styles of paternal involvement confirmed the hypothesis that paternal care is associated with decreased testosterone production in men, and added further support to the ‘challenge hypothesis’.
SIVcpz in wild chimpanzees.
- M. Santiago, C. Rodenburg, B. Hahn
- 18 January 2002
Biology
Science
West-central African chimpanzees harbor strains of simian immunodeficiency virus (SIVcpz) that are closely related to all three groups of human immunodficiency virus 1 (HIV-1) (M, N, and O) and have thus been implicated as a reservoir for human infection.
...
...