The endangered grey gibbon (Hylobates muelleri) may not be seen in captivity much longer. There are now too few in captivity to keep their population sustained and too few in the wild to bring more in. With limited space and funding, zoos must make hard choices every year in deciding which species to breed and which to let go. These animals were photographed at the Miller Park Zoo.
More information on how you can help save species by adopting an animal at the Miller Park Zoo.
About the Photo Ark.