New evidence: AIDS-like disease in wild chimpanzees

An international consortium has found that wild chimpanzees naturally infected with Simian Immunodeficiency Viruses (SIV) - long thought to be harmless to the apes - can contract an AIDS-like syndrome and die as a result. ...

Highly dynamic sex chromosomes in cichlid fishes

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, depending on the species, ...

Scientists dissect the complex choices of animals

What is important when you choose a home? Space, security, light—or a combination of these? Like humans, animals make choices about where to live that have important implications for their livelihoods. But unlike humans, ...

Brood parasitism in fish

There are other animals besides the cuckoo who smuggle their offspring into another animal's nest. The synodontis multipunctatus, which lives in Lake Tanganyika in Africa and is better known as the cuckoo catfish, is just ...

Lake Tanganyika fisheries declining from global warming

The decrease in fishery productivity in Lake Tanganyika since the 1950s is a consequence of global warming rather than just overfishing, according to a new report from an international team led by a University of Arizona ...

Cichlid fish genome helps tell story of adaptive evolution

(Phys.org) —Roughly 40 million years ago, a handful of species of fish from the Nile River went into three lakes in Africa and experienced an unusual flurry of evolution. In one of these lakes as many as 500 new species ...

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