From comparison of the eyes of lampreys and jawed vertebrates, it is clear that a 'vertebrate-style' camera eye was already present in the last common ancestor of these taxa, around 500 million years ...

Three papers in this issue of present major advances in understanding the evolution of birds and mammals, made possible by new methods for comparing the genomes of hundreds of species. Three papers ...

The study of the physiology and ecology of animals that don't have backbones, ranging from worms to sea stars, and of parasites, which can often provide insights into complex ecosystems. (Sea star ...