Grooming is a widespread activity throughout the animal kingdom, but in primates (including
humans) social grooming, or allo-grooming (the grooming of others), plays a particularly …

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 …

Music comprises a diverse category of cognitive phenomena that likely represent both the
effects of psychological adaptations that are specific to music (eg, rhythmic entrainment) and …

What a big brain we have for all the small talk we make. It's an evolutionary riddle that at
long last makes sense in this intriguing book about what gossip has done for our talkative …

Group size covaries with relative neocortical volume in nonhuman primates. This regression
equation predicts a group size for modern humans very similar to that for hunter-gatherer …

The ever present threat of viral, bacterial, protozoan and metazoan parasites in the
environment of wild animals is viewed as responsible for the natural selection of a variety of …

▪ Abstract Mammals are exposed to a diverse array of parasites and infectious diseases,
many of which affect host survival and reproduction. Species that live in dense populations …

Diseases and pathogens are receiving increasing recognition as sources of mortality in
animal populations. Immune system strength is clearly important in fending off pathogen …

In The Black-Tailed Prairie Dog, John L. Hoogland draws on sixteen years of research at
Wind Cave National Park, South Dakota, in the United States to provide this account of …

In this pioneering book, Virginia Smith combines archeology, psychology, biology, and
sociology to reveal how and why standards of cleanliness have come to exist today. Using …