摘要:

The middle ear morphology of Lemur variegatus, a strepsirhine primate, is described. Although no promontory branch of the internal carotid artery appears, there is a well-developed ‘promontory canal’ containing a nerve trunk. This structure, which is previously undescribed in strepsirhines, is made up of the tympanic nerve and the internal carotid nerve. The implications of this discovery for paleontology, systematics, and future research are discus

ISSN:0015-5713    

DOI:10.1159/000155829

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

Skeletal dimensions of pygmy (Pan paniscus) and common (Pan troglodytes) chimpanzees were compared. Significant differences were found in the clavicles, scapulae, pelvises, and in the humerus/femur and femur head/length ratios. No significant differences were observed in long bone lengths or talar breadths. There is extensive overlap in body weights, so that the observed differences cannot be accounted for by body size alone. We conclude that pygmy and common chimpanzees are morphologically distinct. Implications for hominoid evolution are discussed.

ISSN:0015-5713    

DOI:10.1159/000155830

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

Genetic variation of aldehyde dehydrogenase has been demonstrated in catarrhine primates. The results are in accordance with the formal genetic interpretation: three alleles, AldDH1, AldDH2, AldDH3, at the gene locus AldDH. Obviously, the allele AldDH1 has undergone fixation in Homo and Hylobates, the allele AldDH2 in Macaca and Papio, and the allele AldDH3 in Cercopithecus.

ISSN:0015-5713    

DOI:10.1159/000155831

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

The various hematological parameters of the laboratory-maintained bonnet monkeys (Macaca radiata) and the langur monkeys (Presbytis entellus entellus) are presented.

ISSN:0015-5713    

DOI:10.1159/000155832

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

Q (quinacrine), G (Giemsa) and C (centromere) banding studies permitted to characterize one of the two chromosomal patterns of the species.

ISSN:0015-5713    

DOI:10.1159/000155833

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

Eight young Lemur macaco were observed in a zoo during the first 19 weeks of life. Data were obtained on general motor development, development of independence from the mother, contributions of mothers and young to the maintenance of proximity, nursing, grooming, relations between twins, play, feeding, sexual dichromatism, and communication. The results are compared with similar data from other prosimians and from anthropoid primates, and some suggestions made about the evolutionary and adaptive significance of certain aspects of L. macaco development.

ISSN:0015-5713    

DOI:10.1159/000155834

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

The patterns of food sharing among mother and infant chimpanzees at the Gombe National Park, Tanzania, are primarily influenced by the infants’ ability to procure and process foods independently. Foods infants could find and process on their own were not shared by mothers as frequently as foods infants could not obtain independently. Temporal changes were observed in the patterns of interactions as infants matured. It is suggested that food sharing may be considered a behavioral strategy which facilitates the infant’s transition from dependent suckling to independent forag

ISSN:0015-5713    

DOI:10.1159/000155835

出版商:S. Karger AG    

年代:1978

数据来源: Karger

摘要:

The survival and behavior of a postreproductive free-ranging female Cercocebus albigena is documented; her patterns of grooming, aggression, and other social and spatial relationships with members of her group are described and compared with those of other, cycling, females. The phenomenon of female postreproductive survival in free-ranging nonhuman primates is briefly reviewed.

ISSN:0015-5713    

DOI:10.1159/000155836

出版商:S. Karger AG    

年代:1978

数据来源: Karger