The nervous system is evolutionarily conservative compared to the peripheral appendages
that it controls. However, species-specific behaviors may have arisen from very small …

The complexity of nervous systems alters the evolvability of behaviour. Complex nervous
systems are phylogenetically constrained; nevertheless particular species-specific …

Across animals, there is remarkable diversity in behavior. Modern genomic approaches
have made it possible to identify the molecular underpinnings of varied behavioral …

Tremendous progress has been made in our understanding of the ultimate and proximate
mechanisms underlying social behavior, yet an integrative evolutionary analysis of its …

Sociality is classified as one of the major transitions in the evolution of complexity and much
effort has been dedicated to understanding what traits predispose lineages to sociality …

Certain stereotyped patterns of ani mal behavior are innate. They are shaped by evolution
and are in herited by successive generations; large ly unmodified by experience or learning …

We investigated whether genetic differences in various forms of intraspecific aggression and
anxiety in four different genetic lines of mice (ie wild, outbred Swiss-CD1, inbred DBA/2 and …

Comparative studies over the past year have revealed two new insights into the role of
neuropeptides in the evolution of social behaviors. First, across vertebrate taxa, certain …

Survival and reproduction entail the selection of adaptive behavioural repertoires. This
selection manifests as phylogenetically acquired activities that depend on evolved nervous …

Behaviour genetic research has shown that a given gene or gene pathway can influence
categorically similar behaviours in different species. Questions about the conservation of …