Folia Primatologica 

About: Folia Primatologica is an academic journal published by Brill. The journal publishes majorly in the area(s): Lemur & Population. It has an ISSN identifier of 0015-5713. Over the lifetime, 2312 publications have been published receiving 74495 citations. The journal is also known as: Internationale Zeitschrift für Primatologie & Journal international de primatologie.

New and revised data on volumes of brain structures in insectivores and primates.

Abstract: More than 2,000 data on volumetric measurements of 42 structures in a variety of up to 76 species (28 insectivores, 21 prosimians, 27 simians) are given. All volumes measured in serial sections were c

Tool use and tool making in wild chimpanzees.

Abstract: Reported incidences of tool use and tool making for three wild chimpanzee populations increase from Mahale (12 and 3 types of use and making, respectively), Gombe (16 and 3) to Tai (19 and 6). Sticks

Functional significance of social grooming in primates.

Abstract: Frequencies of social grooming recorded from 44 species of free-living primates correlate with group size but not body size. This is interpreted as evidence for the social function of grooming and against the purely hygienic function. However, there is some evidence to suggest that body size is a more important determinant of grooming time among platyrrhine primates. This might imply that there has been a shift in the functional system governing grooming during primate evolution.

Male-male competition and infanticide among the langurs (Presbytis entellus) of Abu, Rajasthan.

Abstract: Leadership changes accompanied by infanticide are described for two langur troops at Abu, Rajasthan. These events are compared with similar reports from Dharwar and Jodhpur. In each of seven cases, infanticide occurred when males entered the troop from outside it. Females whose infants were killed subsequently exhibited estrous behavior and copulated with the new leader. In three troops at Dharwar and Abu, seventy percent of females who lost infants gave birth within eight months. In these cases, infanticide appears on average to increase the reproductive success of the incoming male. Confronted with a male reproductive strategy disadvantageous for them, females respond to usurping males with various counter-strategies. From a comparison with other mammals, infant-killing by males may be advantageous (1) when there is intense competition for females; and (2) when frequent take-overs potentially curtail the tenure of an incoming leader.

Arboreality and bipedality in the Hadar hominids.

Abstract: Numerous studies of the locomotor skeleton of the Hadar hominids have revealed traits indicative of both arboreal climbing/suspension and terrestrial bipedalism. These earliest known hominids must have devoted part of their activities to feeding, sleeping and/or predator avoidance in trees, while also spending time on the ground where they moved bipedally. In this paper we offer new data on phalangeal length and curvature, moφhology of the tarsus and metatarsophalangeal joints, and body proportions that further strengthen the argument for arboreality in the Hadar hominids. We also provide additional evidence on limb and pedal proportions and on the functional anatomy of the hip, knee and foot, indicating that the bipedality practiced at Hadar differed from that of modern humans. Consideration of the ecology at Hadar, in conjunction with modern primate models, supports the notion of arboreality in these earliest australopithecines. We speculate that selection for terrestrial bipedality may have intensified through the Plio-Pleistocene as forests and woodland patches shrunk and the need arose to move increasingly longer distances on the ground. Only with Homo erectus might body size, culture and other factors have combined to ‘release’ hominids from their dependence on trees.