Maternal instincts shine through for all species. —Photos by Agencies A two-day old camel looks adoringly to its mother at the Attica Zoological Park in Athens. A baby manatee swims close to its mother in their enclosure at the newly completed River Safari in Singapore. A lamb follows its mother on a snow covered field in the hills of Domore, Northern Ireland. A young red-necked wallaby looks out of the pouch of its mother at the zoo in Stralsund, Germany. Olivia, a five-year-old Angolan colobus monkey, clutches her baby which was born at the Brookfield Zoo in Brookfield, Illinois. The infant monkeys are born completely white, turn gray, and then black, their adult coloration, in approximately three months. Angolan colobuses are native to dense rain forests throughout equatorial Africa. A young koala sits on the back of its mother in their enclosure at the zoo in Duisburg, Germany. A female Rothschild giraffe, named Sandy Hope, is groomed by its mother at the LEO Zoological Conservation Center in Greenwich, Connecticut. The giraffe was named Sandy Hope in remembrance of the shooting at Sandy Hook Elementary School. In this file photo, chimpanzees sit in an enclosure at the Chimp Eden rehabilitation center, near Nelspruit, South Africa. More than 22,000 great apes are estimated to have been traded illegally over a seven-year period ending in 2011. That's about 3,000 a year; more than half are chimpanzees, the UN report said.