Neil Aldridge / Five orphaned White rhinoceros (Ceratotherium simum) calves feed from a trough at dusk at the Rhino Revolution orphanage near Hoedspruit, South Africa. The mothers of these rhinos were killed by poach...

Suzi Eszterhas / Chinese pangolin (Manis pentadactyla), orphaned baby in arms of research assistant. Taipei Zoo, Taipei, Taiwan. 2015. Captive. Model released.

Jaymi Heimbuch / African Elephant (Loxodonta africana) orphaned calves with keeper, David Sheldrick Wildlife Trust, Nairobi, Kenya

Jaymi Heimbuch / African Elephant (Loxodonta africana) orphaned calf bottle fed by keeper, David Sheldrick Wildlife Trust, Nairobi, Kenya

Ingo Arndt / Orphan one-week-old Hedgehog baby {Erinaceus europaeus} Germany

Suzi Eszterhas / Common Wombat (Vombatus ursinus) seven month old orphaned joey at feeding time, Bonorong Wildlife Sanctuary, Tasmania, Australia

Suzi Eszterhas / Common Wombat (Vombatus ursinus) foster mother, Linda Tabone, bottle feeding six month old orphaned joey, Bonorong Wildlife Sanctuary, Tasmania, Australia

Suzi Eszterhas / Common Wombat (Vombatus ursinus) five month old orphaned joey with pacifier in mouth, Bonorong Wildlife Sanctuary, Tasmania, Australia

Suzi Eszterhas / Sea Otter (Enhydra lutris) orphaned pup, three weeks old, Alaska SeaLife Center, Seward, Alaska

Suzi Eszterhas / Sea Otter (Enhydra lutris) three week old orphaned pup being bottle-fed, Alaska SeaLife Center, Seward, Alaska

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