Evolutionary biology provides a crucial foundation for medicine and behavioral science that
has been missing from psychiatry. Its absence helps to explain slow progress; its advent …

Several hypotheses propose that cooperative breeding leads to increased cognitive
performance, in both nonhuman and human primates, but systematic evidence for such a …

Human cooperation is highly unusual. We live in large groups composed mostly of non-
relatives. Evolutionists have proposed a number of explanations for this pattern, including …

This is an open access title available under the terms of a [CC BY-NC-ND 4.0 International]
licence. It is free to read at Oxford Clinical Psychology Online and offered as a free PDF …

Somewhere in Africa, more than a million years ago, a line of apes began to rear their young
differently than their Great Ape ancestors. From this new form of care came new ways of …

The Classic Edition of Heidi Keller's Cultures of Infancy, first published in 2007, includes a
new introduction by the author, which describes for readers the original context of her work …

ABSTRACT According to the Cooperative Breeding Hypothesis, allomaternal assistance
was essential for child survival during the Pleistocene. This breeding system—quite novel …

Life history theory suggests that in risky and uncertain environments the optimal
reproductive strategy is to reproduce early in order to maximize the probability of leaving any …

It has long been claimed that Homo sapiens is the only species that has language, but only
recently has it been recognized that humans also have an unusual pattern of growth and …

To understand the primate origins of the human interaction engine, it is worthwhile to focus
not only on great apes but also on callitrichid monkeys (marmosets and tamarins). Like …