In recent years, there have been over 50 comparative analyses carried out in which social or
ecological variables have been used to explain variation in whole brain size, or a part …

All animals on Earth compete for free energy, which is acquired, assimilated, and ultimately
allocated to growth and reproduction. Competition is strongest within communities of …

Many evolutionary biologists are concerned with the tremendous amount of diversity of
species, and their phenotypes, that we can currently observe in nature, and one of the most …

Recent rapid climatic changes are associated with dramatic changes in phenology of plants
and animals, with optimal timing of reproduction advancing considerably in the northern …

The widely held hypothesis that enlarged brains have evolved as an adaptation to cope with
novel or altered environmental conditions lacks firm empirical support. Here, we test this …

A comprehensive treatment of visual ecology Visual ecology is the study of how animals use
visual systems to meet their ecological needs, how these systems have evolved, and how …

When approached by humans, virtually all species flee, but we lack an understanding of the
factors that influence flight response among species. Understanding this variation may allow …

Large brains, relative to body size, can confer advantages to individuals in the form of
behavioral flexibility. Such enhanced behavioral flexibility is predicted to carry fitness …

The hypothesis that large brains allow animals to produce novel behaviour patterns is
supported by the correlation between brain size, corrected for body size, and the frequency …

Highlights•Animals vary in their ability to perceive changes in their environment
visually.•Temporal perception can be quantified using critical flicker fusion (CFF).•High CFF …