There are concerned, overprotective parents, and then there are cichlid fish. After a male cichlid fertilizes the female’s eggs, she holds her entire brood of embryos inside her mouth for two weeks ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have uncovered evidence of fish mating with species different from their own—a process that can lead to the ...

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 ...

The management of wounds and burns in both humans and animals is constantly evolving, as doctors strive to find the optimum ...

Shell-dwelling cichlids build nests from empty snail shells, using them for shelter and to raise their young. Stereotypical ...

Biologists have demonstrated that 'evolutionary experience' as well as learning protects cichlid fish from the brood parasitism practiced by the African cuckoo catfish. There are other animals besides ...