Research focusing on among‐individual differences in behaviour ('animal personality') has
been blooming for over a decade. Central theories explaining the maintenance of such …

Following decades of intensive study, Anolis lizards have emerged as a biological model
system. We review how new research on anoles has advanced our understanding of …

Behavioural plasticity is believed to reduce species vulnerability to extinction, yet global
evidence supporting this hypothesis is lacking. We address this gap by quantifying the …

Adaptive evolution in new or changing environments can be difficult to predict because the
functional connections between genotype, phenotype, and fitness are complex. Here, we …

Species' phenotypic characteristics often remain unchanged over long stretches of
geological time. Stabilizing selection—in which fitness is highest for intermediate …

Sound production by fishes has been recognized for millennia, but is typically regarded as
comparatively rare and thus yet to be integrated into broader concepts of vertebrate …

Experimental studies of evolution performed in nature and the associated demonstration of
rapid evolution, observable on a time scale of months to years, were an acclaimed novelty in …

Humans have a profound effect on the planet's ecosystems, and unprecedented rates of
human population growth and urbanization have brought wild animals into increasing …

Within populations, individuals often show repeatable variation in behaviour, called 'animal
personality'. In the last few decades, numerous empirical studies have attempted to …

Biological invasions are a multi-stage process (ie, transport, introduction, establishment,
spread), with each stage potentially acting as a selective filter on traits associated with …