Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) mother lying on back and holding baby age one year. Parc National des Volcans, Rwanda. Endangered species

Christophe Courteau / Eastern lowland gorilla (Gorilla beringei graueri) hand and foot of young gorilla, Kahuzi Biega NP, Democratic Republic of Congo.

Eric Baccega / Silverback male Eastern lowland gorilla (Gorilla beringei graueri) intimidation display by chest beating, equatorial forest of Kahuzi Biega Park, Democratic Republic of Congo, Africa, March 2009

Karl Ammann / Silverback Eastern lowland gorilla (Gorilla beringei graueri) in forest, Kahuzi Biega, Democratic Republic of the Congo.

Karl Ammann / Blackback Eastern lowland gorilla head profile portrait {Gorilla beringei graueri} Kahuzi Biega, Democratic Republic of Congo.

Karl Ammann / Blackback Eastern lowland gorilla {Gorilla beringei graueri} Kahuzi Biega, Democratic Republic of Congo.

Jabruson / Eastern lowland gorilla feeding in tree {Gorilla beringei graueri} Lake Kivu, Democratic Republic of the Congo

NaturePL Showreels / Showreel of material from Central Africa by Jabruson Motion, including clips of Congo african grey parrots (Psittacus erithacus), African forest elephants (Loxodonta cyclotis) and Eastern lowland gori...

Christophe Courteau / Silverback Eastern lowland gorilla (Gorilla gorilla graueri) 'Chimanuka' climbing down from a tree, Kahuzi-Biega National Park, South Kivu Province, Democratic Republic of Congo.

Christophe Courteau / Female Eastern lowland gorilla (Gorilla gorilla graueri) feeding in a tree, Kahuzi-Biega National Park, South Kivu, Democratic Republic of Congo.

Christophe Courteau / Silverback Eastern lowland gorilla (Gorilla gorilla graueri) 'Chimanuka' feeding, Kahuzi-Biega National Park, Democratic Republic of Congo.

Steve O. Taylor (GHF) / Juvenile Eastern Lowland gorilla (Gorilla beringei graueri) sitting in a tree, climbs down, Kahuzi-Biega National Park, Democratic Republic of the Congo, 2009.