Scientists have uncovered evidence of fish mating with species different from their own—a process that can lead to the creation of several new species. For a study published in the journal Nature ...

No less than 500 new species of cichlids, brightly coloured perch-like fish, evolved in Lake Victoria (East Africa) over the past 15,000 years -- a record in the animal and plant world. This ...

LONDON (Reuters) - Some colorful cichlid fish in Africa's Lake Victoria formed a new species by adapting their vision, showing that geographical isolation is not essential for divergence, researchers ...

Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who ...

Image analysis was used to measure feeding angles of Labeotropheus trewavasae, Labeotropheus fulleborni, Melanochromis auratus, Metriadima zebra, Petrotilapia spp., Pseudotropheus c.f. elongatus, ...