The macabre diets of scale-eating cichlids help shed light on the important role of frequency dependence in shaping genetic variation and the natural world. By Jeffrey McKinnon / MIT Press Reader ...

A frustration of evolutionary biologists is that genetics can account for only a small percent of variation in physical traits. Now researchers have found new results on how another factor, a behavior ...

In the second-largest lake in Africa, fish evolution is taking place at an explosive rate. Why? Scientists are diving into the question Ben Crair Lake Malawi formed in a valley where the African ...

Animals are remarkably diverse in their sleep and activity patterns due to foraging strategies, social behavior and their desire to avoid predators. With more than 3,000 types of cichlids, these ...

The biological family Cichlidaea is one of the most fascinating examples of animal evolution on Earth. Convict cichlids are a widespread, well-known species within this unique group. Convict cichlids ...

Evolutionary biologists describe a new gene in the Central American Midas cichlid fish and identify a variant caused by a 'jumping gene' (transposon). This variant of the 'goldentouch gene' is most ...