Evolution selects for traits that are of adaptive value and increase the fitness of an individual
or population. Numerical competence, the ability to estimate and process the number of …

Sensory information allows animals to interpret their environment and make decisions. The
ways in which animals perceive and measure stimuli from the social and physical …

Evidence has been reported for quantity discrimination in mammals and birds and, to a
lesser extent, fish and amphibians. For the latter species, however, whether quantity …

A large body of experimental evidence shows that animals as diverse as mammals, birds,
and fish are capable of processing numerical information. Considerable differences have …

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 …

The ability to discriminate between quantities has been observed in many species. Typically,
when an animal is given a choice between two sets of food, accurate performance (ie …

In a variety of circumstances animals can represent numerical values per se, although it is
unclear how salient numbers are relative to non-numerical properties. The question is then …

We simulated the situation of risky hunting in the striped field mouse Apodemus agrarius in
order to examine whether these animals are able to make a choice between small and large …

Playback experiments have proved to be a useful tool to investigate the extent to which wild
animals understand numerical concepts and the factors that play into their decisions to …

How animal populations adapt to human modified landscapes is central to understanding
modern behavioural evolution and improving wildlife management. Coyotes (Canis latrans) …