Evolutionary immunology has entered a new era. Classical studies, using just a handful of
model animal species, combined with clinical observations, provided an outline of how …

Colonization of a novel habitat is often followed by phenotypic diversification in the wake of
ecological opportunity. However, some habitats should be inherently more constraining than …

Anglerfish are creatures of the deep ocean, featuring glowing lures, huge, toothy mouths
and parasitic males physically attached to females. A new study finds that genomic …

Producing and maintaining sexually selected ornaments often hinders survival. Because
viability-related traits dictate the survival costs conferred by sexual ornaments, the evolution …

Among cartilaginous fishes, Holocephali represents the species-depauperate,
morphologically conservative sister to sharks, rays and skates and the last survivor of a once …

Our understanding of the vertebrate immune system is dominated by a few model organisms
such as mice. This use of a few model systems is reasonable if major features of the immune …

Sister lineage comparisons provide a valuable tool for understanding evolutionary origins of
species-rich clades. Percomorpha, comprising over 18,900 species, represents one of the …

Colonization of a novel habitat is often followed by phenotypic diversification in the wake of
ecological opportunity. However, some habitats should be inherently more constraining than …