Results 191 to 200 of about 798,973 (232)
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Molar development in common chimpanzees (Pan troglodytes)
Journal of Human Evolution, 2007Numerous studies have reported on enamel and dentine development in hominoid molars, although little is known about intraspecific incremental feature variation. Furthermore, a recent histological study suggested that there is little or no time between age at chimpanzee crown completion and age at molar eruption, which is unlikely given that root growth
Smith TM +4 more
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Diabetes mellitus in the Chimpanzee (Pan troglodytes)
Journal of Medical Primatology, 1981Glucose intolerance was found in four adult chimpanzees. The response of glucose, insulin, C-peptide, and glucagon to intravenous glucose and tolbutamide stimulations revealed impaired glucose clearance, deficient pancreatic secretion of insulin and C-peptide, and elevated glucagon levels.
I Y, Rosenblum +2 more
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American Journal of Primatology, 2005
AbstractThe character of arthritis has not received the same attention in Pan paniscus as it has in P. troglodytes. Reactive arthritis (a form of spondyloarthropathy) in the latter has been considered to be either a sexually transmitted or an infectious‐agent diarrhea‐related disorder. The unique sexual promiscuity of P.
Rothschild, Bruce M, Rühli, Frank J
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AbstractThe character of arthritis has not received the same attention in Pan paniscus as it has in P. troglodytes. Reactive arthritis (a form of spondyloarthropathy) in the latter has been considered to be either a sexually transmitted or an infectious‐agent diarrhea‐related disorder. The unique sexual promiscuity of P.
Rothschild, Bruce M, Rühli, Frank J
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Pan paniscus and Pan troglodytes
1984Previous ape language studies have been undertaken with common chimpanzees (Pan troglodytes), orangutans (Pongo pygmaeus), and gorillas (Gorilla gorilla) (Gardner and Gardner, 1969; Rumbaugh, 1977, Savage-Rumbaugh, 1979; Miles, 1982; Patterson and Linden, 1981).
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Pan troglodytes subsp. troglodytes
Published as part of Turni, Hendrik, 2024, Type specimens of Primates (Mammalia) in the collections of the Museum für Naturkunde Berlin, pp.openaire +1 more source
Finger drawing by infant chimpanzees ( Pan troglodytes )
Animal Cognition, 2003We introduced a new technique to investigate the development of scribbling in very young infants. We tested three infant chimpanzees to compare the developmental processes of scribbling between humans and chimpanzees. While human infants start to scribble on paper at around the age of 18 months, our 13- to 23-month-old infant chimpanzees had never been
Masayuki, Tanaka +2 more
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Causal capture effects in chimpanzees (Pan troglodytes)
Cognition, 2017Extracting a cause-and-effect structure from the physical world is an important demand for animals living in dynamically changing environments. Human perceptual and cognitive mechanisms are known to be sensitive and tuned to detect and interpret such causal structures.
Toyomi, Matsuno, Masaki, Tomonaga
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Perinatal telencephalic leucoencephalopathy in chimpanzees (Pan troglodytes)
Acta Neuropathologica, 1973Parenchymal deposits with the histochemical characteristics of acid glycosaminoglycans were discovered in the brains of 12 chimpanzees ranging from 6 months gestational age to 17 months post partum. Similar deposits were not seen in the brains of one fetus of approximately 3 1/2 month gestational age or in the brains of three animals that were 10 or ...
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Reproductive Aging in Female Chimpanzees (Pan troglodytes)
2008Published age-specific fertility rates document a sharp decline in female chimpanzee fertility after age 35 years. However, in contrast to data on human females, little else is known regarding reproductive aging in chimpanzees. We documented age-related changes in estrous cycling, hormone profiles, and reproductive physiology in 14 female chimpanzees ...
Elaine N, Videan +3 more
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Chimpanzees? constructional praxis (Pan paniscus, P. troglodytes)
Primates, 2004This study investigated chimpanzees' spontaneous spatial constructions with objects and especially their ability to repeat inter-object spatial relations, which is basic to understanding spatial relations at a higher level than perception or recognition.
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