Suzi Eszterhas / Red-shanked douc langur (Pygathrix nemaeus) infant sucking thumb while caretaker holds it. Animal was rescued from illegal wildlife trade, Endangered Primate Rescue Center, Cuc Phuong National Park, V...

Suzi Eszterhas / Sea Otter (Enhydra lutris) three week old orphaned pup holding caretaker finger, Alaska SeaLife Center, Seward, Alaska

Suzi Eszterhas / Sea Otter (Enhydra lutris) caretaker, Deanna Troeauga, bottle-feeding three week old orphaned pup, Alaska SeaLife Center, Seward, Alaska

Juergen Freund / Caretaker transfers live fish in fish pens of Groupers / Coral trout, Live Reef Fish Trade, Tampakan, Kudat Bay, Sabah, Borneo, Malaysia, June 2009.

Suzi Eszterhas / Rescued chimpanzees (Pan troglodytes) playing with Bruce Ainebyona (Caretaker) Ngamba Island Chimpanzee Sanctuary, Uganda, Africa. Captive, June 2009. model released, *Digitally removed fence post in...

Suzi Eszterhas / Caretaker at Carnivore and Pangolin Conservation Program holding Sunda pangolin (Manis javanica) baby aged three months, rescued from poachers. Cuc Phuong National Park, Ninh Binh, Vietnam. 2014. Capt...

Suzi Eszterhas / Bui Thi Hanh, animal caretaker, holding infant Red-shanked douc langur (Pygathrix nemaeus) and infant Grey-shanked douc langur (Pygathrix cinerea) that were rescued from illegal wildlife trade Endang...

Suzi Eszterhas / Nguyen Thi Thi Phuong, Animal Caretaker, holding infant Red-shanked douc langur (Pygathrix nemaeus) which was rescued from illegal wildlife trade. Endangered Primate Rescue Center, Cuc Phuong National...

Suzi Eszterhas / Bui Thi Hanh, Animal Caretaker, bottle-feeding infant Red-shanked douc langur (Pygathrix nemaeus) that was rescued from illegal wildlife trade, Endangered Primate Rescue Center, Cuc Phuong National Pa...

Suzi Eszterhas / Bui Thi Hanh, Animal Caretaker, holding infant Red-shanked douc langur (Pygathrix nemaeus) that was rescued from illegal wildlife trade, Endangered Primate Rescue Center, Cuc Phuong National Park, Vie...

Suzi Eszterhas / Grey-shanked douc langur (Pygathrix cinerea) and Red-shanked douc langur (Pygathrix nemaeus) infants held by animal caretaker, Endangered Primate Rescue Center, Cuc Phuong National Park, Vietnam

Paul Souders/ Worldfoto / African Elephant (Loxodonta africana) orphaned calf bottle feeding, David Sheldrick Wildlife Trust, Nairobi, Kenya