Publisher Summary This chapter discusses the current knowledge of competition and
cooperation in wild chimpanzees. It explicitly focuses on recent field studies that shed new …

Infanticide is well documented in chimpanzees and various hypotheses have been
proposed to explain this behavior. However, since infanticide by chimpanzees is relatively …

Unlike humans, who came down from the trees and developed bipedal locomotion,
chimpanzees have remained in the original habitat of our ancestors: the tropical rainforests …

This paper tests the proposal that chimpanzees (Pan troglodytes) and humans have similar
rates of death from intraspecific aggression, whereas chimpanzees have higher rates of non …

Anthropologists have long been interested in the behavioral ecology of nonhuman primates
living in savannas given what we know of early hominin environments. As expected …

Background Assessing the range and territories of wild mammals traditionally requires years
of data collection and often involves directly following individuals or using tracking devices …

Joint travel is a common social activity of many group-living animals, which requires some
degree of coordination, sometimes through communication signals. Here, we studied the …

Assessment Information: Although Pan troglodytes is the most abundant and widespread of
the great apes, and many populations exist in protected areas, the declines that have …

From finding food to choosing mates, animals must make intertemporal choices that involve
fitness benefits available at different times. Species vary dramatically in their willingness to …

Highlights•Chimpanzees produce low-frequency sounds by drumming on buttress roots of
trees.•Drumming is used across contexts with apparently long-and short-distance functions.• …