In more than 95% of mammalian species, males provide little direct investment in the well-
being of their offspring. Humans are one notable exception to this pattern and, to date, the …

From the snub-nosed monkeys of China to the mountain gorillas of central Africa, our closest
nonhuman relatives are in critical danger worldwide. A recent report, for example, warns that …

Social organisation in animals takes many forms. It includes assemblages of territorial
animals, dominance hierarchies and social groups, among other things. The basic tenet that …

Sexual and asexual reproduction are found throughout the plant and animal kingdoms.
Asexual reproduction has its advantages, chief among which is that it does not require the …

We review evolutionary processes and mechanisms that gave rise to the diversity of primate
social systems. We define social organization, social structure and mating system as distinct …

This second edition reviews the new research findings and theoretical advances on fathers,
families, child development, programs, and policies that have occurred in the past decade …

We all know the opposite sex can be a baffling, even infuriating, species. Why do most men
use the phone to exchange information rather than have a chat? Why do women love talking …

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

Obtaining information on wild mammal populations has been a long-standing logistical
problem. However, an array of non-invasive techniques is available, including recently …

Many social animals live in stable groups. In contrast, African savannah elephants
(Loxodonta africana) live in unusually fluid, fission–fusion societies. That is,'core'social …