Primates are very diverse.
Apes represent the most advance primates.
The western lowland gorilla is found in tropical rainforests in eastern Nigeria, Cameroon, southwestern Central African Republic, Equatorial Guinea, the Congo, Gabon, and Cabina. The eastern lowland gorilla is located in small pockets of tropical rainforest areas in the eastern part of the Congo. The gorilla lives in groups called troops and spends most of its time on the ground, although juveniles may by seen playing in trees. Each troop, from 7-20 gorillas, is led by a silverback male who protects and keeps the group together. Gorillas are typically quiet and gentle.