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 ...

Lake Sampaloc in the Philippines is experiencing something of a gold rush because of an invasive species. The sight of golden-specked cichlids is increasingly common in the water after the fish — ...

This is a preview. Log in through your library . Abstract The Midas cichlid (Cichlasoma citrinellum) is a large, aggressive monogamous fish from the Great Lakes of Nicaragua. It lives in an ecosystem ...

The mechanisms by which new species arise are still not fully understood. What are the evolutionary processes that drive the evolution of new species? Evolutionary biologists traditionally assumed ...

Discover how aggression in aquarium fish, like the Midas cichlid, is affected by tank size and environment complexity. Your fish are probably pissed off if you keep them in a small aquarium, suggests ...

Many species of fishes are aggressive when placed in small aquaria. Aggression can negatively affect the welfare of those individuals toward whom it is directed. Animals may behave aggressively in ...

Researchers have found that chunks of "flipped" DNA can help fish quickly adapt to new habitats and evolve into new species, acting as evolutionary "superchargers." In the face of threats from other ...

Cichlid fishes are one of the best model system for the study of evolution of the species. Inspired by them, in this paper we simulated the splitting of a single species into two separate ones via ...

It's a flying fish tale worthy of Finding Nemo. But in a bizarre twist, this unusual story of three North Vancouver women trying to reunite an exotic fish with its owner started on land - with a fish ...

Sometimes individuals of the same species differ greatly in their shape or colouration. Scientifically, this phenomenon is referred to as "polymorphism". The 13 fish species that belong to the Central ...

Evolutionary biologists have analyzed the role of microRNAs in the evolution of new species. The mechanisms by which new species arise are still not fully understood. What are the evolutionary ...