African cichlid fish is an example of adaptive radiation. This type of fish can be found in Lake Malawi, Lake Tanganyika and Lake Victoria in Africa.
Specific examples of African cichlid fishes that have undergone recent adaptive radiation are Metriaclima zebra and Pundamilia nyererei. Both of these species can be found in Lake Malawi and Lake Victoria respectively. Neotropical cichlids, which include the African cichlids, are a hugely diverse family. The family is comprised of over 600 species and 60 genera. They can also be found in South and Central America. Other two hugely diverse families of Neotropical fishes are Loricariidae and Characidae. Adaptive radiation refers to an occurrence associated with quick diversification of a lineage with the evolution of various adaptations.