Archive for August 17th, 2012

Bird Louse Study Shows How Evolution Sometimes Repeats Itself

A study of the genetic heritage of avian feather lice indicates that their louse ancestors first colonized a particular group of birds (ducks or songbirds, for example) and then “radiated” to different habitats on those birds — to the wings or heads, for instance, where they evolved into different species. This finding surprised the researchers […]