Acquired immunodeficiency syndrome (AIDS) of humans is caused by two lentiviruses,
human immunodeficiency viruses types 1 and 2 (HIV-1 and HIV-2). Here, we describe the …

We propose that the crucial difference between human cognition and that of other species is
the ability to participate with others in collaborative activities with shared goals and …

At some point in the course of evolutionâe" from a primeval social organization of early
hominidsâe" all human societies, past and present, would emerge. In this account of the …

The program presents anthropology's core concepts and also demonstrates anthropology's
relevance to the 21st-century world we inhabit. Key themes of appreciating the experiences …

As compared with other primates, humans have especially visible eyes (eg, white sclera).
One hypothesis is that this feature of human eyes evolved to make it easier for conspecifics …

▪ Abstract In the 1970s, researchers provided the first detailed descriptions of intergroup
conflict in chimpanzees. These observations stimulated numerous comparisons between …

This comprehensive introductory text integrates evolutionary, ecological, and demographic
perspectives with new results from field studies and contemporary noninvasive molecular …

Based on field studies spanning nearly 40 years, this reference book summarizes and
integrates past research with new and previously unpublished information on the behavioral …

All known chimpanzee populations have been observed to hunt small mammals for meat.
Detailed observations have shown, however, that hunting strategies differ considerably …

Wild chimpanzees, Pan troglodytes, frequently hunt and share meat. Despite widespread
interest and considerable study, continued controversy exists regarding the factors that …