Over 1,800 species of cichlid fish live in Africa’s Rift Valleys lakes. In this crowded world, many cichlid species use ‘mouth-brooding’ to both incubate their eggs, and protect their young.
Cichlids: Cichlidae are unique in that they have teeth both in their jaw and in the throat and a single nostril on either side of the head instead of 2. One of the reasons for the family's massive ...