Cichlids are one of the largest and strangest groups of vertebrate fish — fish with backbones — on Earth. They’re popular as pets and farmed in aquaculture, and scientists have been studying them ...

Quebec City, Canada - An international team of scientists from Canada (Université Laval), the U.K. (University of Hull, Cardiff University) and Spain (Doòana Biological Station), have discovered that ...

The cichlids of Lake Tanganyika in Africa are highly diverse -- including with regard to sex chromosomes. These have changed extremely frequently in the course of the evolution of these fish and, ...

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 ...

There are more than 500 cichlid species in Africa's Lake Malawi. They evolved from a few species that likely entered the lake about 3 million years ago and now display very different behaviors and ...

Gene transfer inhibition in the African cichlids fish might explain the evolution of new species, a study in Nature Ecology & Evolution, has found. Martin Genner, a professor of Ecology, Population ...

Despite the dramatic difference between day and nightlife, how fish exploit different times of day has not been studied systematically. Scientists explored alterations in the circadian timing of ...