Gerry Ellis / Slash-and-burn deforestation for farming, near Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Western Lowland Gorilla (Gorilla gorilla gorilla) silverback, Limbe Wildlife Centre, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphan Larry playing in tree, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphans, Larry investigating Daphne's tongue, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphan Larry, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphan Larry playing in forest nursery, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphan Larry scratching, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Vincent Grafhorst / Man looking into crater at night, Mount Nyiragongo, Virunga National Park, Democratic Republic of the Congo

Vincent Grafhorst / Lava in volcanic crater, Mount Nyiragongo, Virunga National Park, Democratic Republic of the Congo

Cyril Ruoso / Bonobo (Pan paniscus) young in day nest, Democratic Republic of the Congo

Theo Allofs / Mountain Gorilla (Gorilla gorilla beringei) juvenile male, Volcanoes National Park, Rwanda

Theo Allofs / Mountain Gorilla (Gorilla gorilla beringei) juvenile male, Volcanoes National Park, Rwanda

Thomas Marent / Bonobo (Pan paniscus) hooting, Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo

Thomas Marent / Bonobo (Pan paniscus) walking through water, Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo

Thomas Marent / Bonobo (Pan paniscus) feeding on leaves, Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo

Thomas Marent / Bonobo (Pan paniscus), Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo

Thomas Marent / Sun-tailed Guenon (Cercopithecus solatus) mother with baby, Franceville, Gabon

Thomas Marent / Mandrill (Mandrillus sphinx) male in defensive posture, Lekedi Natural Preserve, Gabon

Thomas Marent / Mandrill (Mandrillus sphinx) male, Lekedi Natural Preserve, Gabon

Thomas Marent / Mandrill (Mandrillus sphinx) male, Lekedi Natural Preserve, Gabon

Thomas Marent / Mandrill (Mandrillus sphinx) male in defensive posture, Lekedi Natural Preserve, Gabon

Thomas Marent / Mandrill (Mandrillus sphinx) males in tall grass, Lekedi Natural Preserve, Gabon

Thomas Marent / Mandrill (Mandrillus sphinx) male, Lekedi Natural Preserve, Gabon

Sean Crane / Mountain Gorilla (Gorilla gorilla beringei) mother and young, Bwindi Impenetrable National Park, Uganda

Sean Crane / Kob (Kobus kob) male, Queen Elizabeth National Park, Uganda

Peter Kes / Grey-backed Fiscal (Lanius excubitoroides), Uganda

Adri de Visser / African Lion (Panthera leo) female looking at Kob (Kobus kob) calf, Queen Elizabeth National Park, Uganda

Adri de Visser / Mountain Gorilla (Gorilla gorilla beringei) in rain, Bwindi Impenetrable National Park, Uganda

Cyril Ruoso / Sun shining down through the tropical rainforest canopy, Cameroon

Cyril Ruoso / Tree trunks logged by German company and certificated as legal wood from the Congo forest, destination Europe, Democratic Republic of the Congo

Cyril Ruoso / Bonobo (Pan paniscus), bath time for orphan infants with their adoptive mother, Sanctuary Lola Ya Bonobo Chimpanzee, Democratic Republic of the Congo

Cyril Ruoso / Bonobo (Pan paniscus) female with newborn, Sanctuary Lola Ya Bonobo Chimpanzee, Democratic Republic of the Congo

Cyril Ruoso / Bonobo (Pan paniscus) pair of orphans hugging, Sanctuary Lola ya Bonobo, Democratic Republic of the Congo

Cyril Ruoso / Chimpanzee (Pan troglodytes) female looking into the camera curiously, Gabon

Cyril Ruoso / Bonobo (Pan paniscus) female playing in the grass, ABC Sanctuary, Democratic Republic of the Congo

Cyril Ruoso / Bonobo (Pan paniscus) portrait of female standing, ABC Sanctuary, Democratic Republic of the Congo

Cyril Ruoso / Mountain Gorilla (Gorilla gorilla beringei) large silverback continuing to display after attacking a tourist, Virunga Mountains, Rwanda

Cyril Ruoso / Mountain Gorilla (Gorilla gorilla beringei) female with her three month old newborn, Parc National Des Volcans, Rwanda

Cyril Ruoso / Mountain Gorilla (Gorilla gorilla beringei) close-up portrait of a silverback in the rain, Parc National Des Volcans, Rwanda

Cyril Ruoso / Chimpanzee (Pan troglodytes) using tools to crack nuts, Gabon

Cyril Ruoso / Chimpanzee (Pan troglodytes) using tools to crack nuts, Gabon

Cyril Ruoso / Chimpanzee (Pan troglodytes) adult female with orphan baby she has adopted, Gabon

Cyril Ruoso / Chimpanzee (Pan troglodytes) young using a leaf to drink, Gabon

Cyril Ruoso / Chimpanzee (Pan troglodytes) resting on a liana vine, Gabon

Cyril Ruoso / Chimpanzee (Pan troglodytes) adult female calling, Gabon

Cyril Ruoso / Banana (Musa sp) flower, Democratic Republic of the Congo

Cyril Ruoso / Banana (Musa sp) close up of leaf with water droplets, Rwanda

Cyril Ruoso / Banana (Musa sp) close up of leaf with water droplets, Rwanda

Cyril Ruoso / Mandrill (Mandrillus sphinx) adult male, Gabon

Cyril Ruoso / Mandrill (Mandrillus sphinx) close-up portrait of an adult male picking his nose, Gabon

Cyril Ruoso / Bonobo (Pan paniscus) juvenile pair making funny faces, Democratic Republic of the Congo

Cyril Ruoso / Bonobo (Pan paniscus) smiling while laying on ground, ABC Sanctuary, Democratic Republic of the Congo

Martin Willis / Mountain Gorilla (Gorilla gorilla beringei) male feeding, Volcanoes National Park, Rwanda

Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) silverback feeding, Parc National des Volcans, Rwanda

Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) mother holding five month old twin babies, Parc National des Volcans, Rwanda

Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) mother holding five month old twin babies, Parc National des Volcans, Rwanda

Ingo Arndt / Shoebill (Balaeniceps rex), Uganda

Tim Laman / Aerial view of waterfall and rain forest near Punta Dolores, south coast region of Bioko Island, Equatorial Guinea, Central Africa. January 2008

Tim Laman / Rays of light passing though high montane rainforest on Pico Basile above 2000 m altitude, Bioko Island, Equatorial Guinea, January 2008

Tim Laman / Aerial view of the south coast of Bioko Island, Equatorial Guinea, Central Africa, January 2008

Tim Laman / Bioko red-eared guenon (Cercopithecus erythrotis erythrotis) in canopy of large rainforest tree, Bioko Island, Equatorial Guinea, Endangered Species, January

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

Thomas Marent / Mountain Gorilla (Gorilla gorilla beringei) silverback, Volcanoes National Park, Rwanda

Michael D. Kern / Variable / African bush viper snake {Atheris squamiger} captive, occurs equatorial Africa

Ingo Arndt / Mountain Gorilla (Gorilla gorilla beringei) juvenile, Parc National Des Volcans, Rwanda

Ingo Arndt / Mountain Gorilla (Gorilla gorilla beringei) baby, Parc National Des Volcans, Rwanda

Ingo Arndt / Mountain Gorilla (Gorilla gorilla beringei) Susa group showing male silverback, two females and two juveniles, Parc National Des Volcans, Rwanda

Ingo Arndt / Mikeno Volcano (3634 meters) with lenticular cloud, Republic of the Congo in the Virunga heartland, view from Rwanda

Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) 10 month old infant playfully climbing bamboo pole, endangered, Parc National Des Volcans, Rwanda

Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) 10 month old infant riding on mother's back, endangered, Parc National Des Volcans, Rwanda

Konrad Wothe / Okapi (Okapia johnstoni) parent with young, native to tropical forests of northern Congo

Karl Ammann / Waste timber, Central African rainforest. On average, less than half of the wood cut is used.

Karl Ammann / Baby Western lowland gorilla (Gorilla g gorilla), victim of the illegal bushmeat and pet trades, Central Africa. After shooting an adult gorilla, bushmeat hunters capture the babies for additional pro...

Karl Ammann / Baby Western lowland gorilla (Gorilla g gorilla) head portrait - victim of the illegal bushmeat and pet trade, Pointe Nior, Democratic Republic of Congo. After shooting an adult gorilla, bushmeat hunt...

Karl Ammann / Tropical rainforest timber transported on logging trucks to the local seaport. Drivers are paid per trip and therefore have an incentive to ignore traffic and safety rules.

Karl Ammann / Male mandrill portrait (Mandrillus sphinx), Central Africa.

Karl Ammann / Moustached monkey portrait (Cercopithecus cephus), Central Africa.

Patricio Robles Gil / African Pygmy Elephant (Loxodonta pumilio) vocalizing with trunk raised, Petit Loango National Park, Gabon, western Africa

ZSSD / Western Lowland Gorilla (Gorilla gorilla gorilla) male vocalizing, native to equatorial West Africa

Konrad Wothe / Mountain Gorilla (Gorilla gorilla beringei) males fighting, Virunga National Park, Democratic Republic of the Congo

Konrad Wothe / Mountain Gorilla (Gorilla gorilla beringei) baby rolling on forest floor, Virunga National Park, Congo

Mark Moffett / Meg Lowman strides across a canopy raft to collect insect samples with her net as Bruce Rinker inspects the previous catch, Cameroon

Andrew Murray / Man holding enormous Goliath frog {Conraua goliath} Equatorial Guinea

Gerry Ellis / Mountain Gorilla (Gorilla gorilla beringei) female showing finger lost to poacher's trap, Virunga Mountains, Democratic Republic of the Congo

Gerry Ellis / Mountain Gorilla (Gorilla gorilla beringei) family resting in rainforest, Virunga, Rwanda

Gerry Ellis / Mountain Gorilla (Gorilla gorilla beringei) male, Virunga Mountains nestled along the northern border of Rwanda, the Democratic Republic of the Congo and Uganda

Gerry Ellis / Western Lowland Gorilla (Gorilla gorilla gorilla) silverback male, equatorial Africa

Gerry Ellis / Mountain Gorilla (Gorilla gorilla beringei) group eating, Virunga Mountains

Gerry Ellis / Chimpanzee (Pan troglodytes) orphans Daphne and Larry playing, Ape Action AFrica, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphan Daphne playing in trees, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Chimpanzee (Pan troglodytes) orphan Larry, Ape Action Africa, Mefou Primate Sanctuary, Cameroon

Gerry Ellis / Rainforest logs on logging road, Cameroon

Gerry Ellis / Conservationist, Abwe Egong, in giant rainforest buttress root, Ebo Wildlife Reserve, Cameroon

Gerry Ellis / Sarcophrynium (Sarcophrynium prionogonium) a climate change research plant being monitored by conservationist, Abwe Egong, Ebo Wildlife Reserve, Cameroon

Gerry Ellis / Sarcophrynium (Sarcophrynium prionogonium) plant used in climate research, held by conservationist, Abwe Egong, Ebo Wildlife Reserve, Cameroon

Gerry Ellis / Tropical rainforest cleared by local famer, Ebo Wildlife Reserve, Cameroon