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

Over the last two decades a large number of experiments have been conducted in which two
conspecifics, mainly vertebrates, could obtain rewards through cooperation. At least three …

This is the second of the two closely linked but self-contained volumes that comprise James
Hurford's acclaimed exploration of the biological evolution of language. In the first book he …

Deception is a universal feature of life, at all levels and in all relationships both within
species and between species, inside individuals and outside, with strong effects on both …

Thoroughly updated for its third edition with the latest research in the field, this innovative
text delivers an apt and comprehensive introduction to the rich and complex world of animal …

Three experiments were designed to test whether adult pet dogs are able to show inferential
reasoning when searching for their toy in a series of two-way choice tasks. The experimenter …

The authors administered a series of object displacement tasks to 24 great apes and 24 30-
month-old children (Homo sapiens). Objects were placed under 1 or 2 of 3 cups by visible or …

A persistent debate in behavioral research is whether brain size or architecture relates to
cognitive performance. A growing body of evidence has demonstrated correlations between …

Object permanence in Eurasian jays (Garrulus glandarius) was investigated using a
complete version of the Uzgiris and Hunt scale 1. Nine hand-raised jays were studied …

Primates are, on average, more intelligent than other mammals, with great apes and finally
humans on top. They generally have larger brains and cortices, and because of higher …