摘要:

A new palate from Napak IV in Uganda, dated at 19 million years or older, provides information about the facial morphology of a small Miocene hominoid from East Africa. The fossil resembles small extant gibbons in most features of facial and palatal morphology that are preserved, more so than does its European contemporary, Pliopithecus (Epipliopithecus) vindobonensis. The Ugandan hominoid is most closely related to the small Kenyan hominoids formerly placed in the genus Limnopithecus.

ISSN:0015-5713    

DOI:10.1159/000155681

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Cranial and postcranial anthropometric data were taken on 18 male and 14 female newborn Macaca nemestrina monkeys and compared with data from the literature on other species of Macaca. The females of every species are somewhat smaller in all dimensions than the males at birth. However, they are more fully developed than males in relation to the amount of growth needed to achieve the adult form, and therefore undergo less postnatal growth than males.

ISSN:0015-5713    

DOI:10.1159/000155682

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

A case of syndactyly in a captive bred white-lipped tamarin (Saguinus nigricollis) is reported which involved the fusion of metacarpals 3 and 4 of both hands. Variations in the vertebral formula among the parents and offspring were also found.

ISSN:0015-5713    

DOI:10.1159/000155683

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Body weight data, collected routinely from the US Air Force chimpanzee colony at Holloman AFB, was used for a longitudinal analysis of growth. Data were fitted to a model based on human growth patterns, which is described and compared to other treatments applied to growth data. Results are compared to other observations of chimpanzee and of human growth.

ISSN:0015-5713    

DOI:10.1159/000155684

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Behavior of Kloss’ gibbons was studied from July 1 to October 7, 1972 in Siberut Island, off the coast of western Sumatra, Indonesia. Reproductive groups are monogamous families with a mean family size of 3.4 individuals (n = 11 families). Such families occupy territories averaging 6.7 ha. Adults defend their territories only against members of the same sex. This intrasexual defense of territory maintains the monogamous mating system. Other social units were unmated resident females, unmated resident males, floating males, and a courting pair. Males establish territories before mating, perhaps with help from their parents. Males guard their families against predators. Females lead progression through the territory. Subadults remain peripheral to their families but other family members tend to remain within 10 m of one anothe

ISSN:0015-5713    

DOI:10.1159/000155685

出版商:S. Karger AG    

年代:1975

数据来源: Karger