PROVIDENCE, R.I. [Brown University] -- Africa's Lake Malawi is home to hundreds of species of cichlids, the freshwater fish whose broad array of colors make them popular denizens of household ...

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 ...

This is an old article, reposted from the original WordPress incarnation of Not Exactly Rocket Science. I’m on holiday for the moment, but you can expect a few new pieces here and there (as well as ...

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 ...

Figure 1: Representative rock-dwelling cichlid species from Lake Malawi. Figure 2: The phenotypically derived species has higher endogenous levels of Wnt signalling during craniofacial development.

Sex-determining systems may evolve rapidly and contribute to lineage diversification. In fact, recent work has suggested an integral role of sex chromosome evolution in models of speciation. We use ...

Scuba divers found some “large”-eyed lake creatures off the coast of Malawi and discovered two new species, a study said and photos show. Photo from Getty / iStockphoto Plunging into a large lake in ...

Periods of deep, clear water in Lake Malawi over the past 800,000 years coincide with bursts of species diversification, researchers show in a new report. Africa's Lake Malawi is home to hundreds of ...