Recent studies suggest that populations and species often exhibit behavioral syndromes;
that is, suites of correlated behaviors across situations. An example is an aggression …

ABSTRACT A behavioral syndrome is a suite of correlated behaviors expressed either
within a given behavioral context (eg, correlations between foraging behaviors in different …

In recent years, scientists have realized that evolution can occur on timescales much shorter
than the" long lapse of ages" emphasized by Darwin—in fact, evolutionary change is …

Ten years ago, we reported that SM, a patient with rare bilateral amygdala damage, showed
an intriguing impairment in her ability to recognize fear from facial expressions. Since then …

Many benthic marine invertebrates develop by means of free-living, dispersive larval stages.
The presumed advantages of such larvae include the avoidance of competition for …

What stops populations expanding into new territory beyond the edge of a range margin?
Recent models addressing this problem have brought together population genetics and …

Molecular markers appear to be poor indicators of heritable variation in adaptive traits.
Direct comparison of population structure in markers with that in traits is made possible by …

Microevolution, defined as a change in the genetic constitution of a population over time, is
considered to be of commonplace occurrence in nature. Its ubiquity can be inferred from the …

We examined intraspecific morphological diversification between river channel and lagoon
habitats for two Neotropical fish (Bryconops caudomaculatus, Characidae; Biotodoma …

The “geographic mosaic” approach to understanding coevolution is predicated on the
existence of variable selection across the landscape of an interaction between species. A …