A visitor photographs orphaned baby elephants with a cell phone at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 12, 2014. The orphanage under the David Sheldrick Wildlife Trust is operated by Daphne Sheldrick, wife of late famous naturalist David William Sheldrick. The orphaned elephants raised by the trust will be returned to join the undomesticated elephant population in Tsavo National Park, where David was the founder warden from 1948 to 1976, when they mature, usually between eight to 10 years old. (Photo by Goran Tomasevic/Reuters)

Pupils look at an orphaned baby elephant at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

A keeper feeds an orphaned baby elephant with milk from a bottle at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

Pupils touch an orphaned baby elephant at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

Pupils look at orphaned baby elephants at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

Pupils look at orphaned baby elephants at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

A keeper sprinkles water on orphaned baby elephants at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

An orphaned baby elephant walks near visitors at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

An orphaned baby elephant basks in a mud puddle at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

A keeper holds an orphaned baby elephant by its trunk at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. (Photo by Goran Tomasevic/Reuters)

Orphaned baby elephants play at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 12, 2014. (Photo by Goran Tomasevic/Reuters)

Orphaned baby elephants play at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 12, 2014. (Photo by Goran Tomasevic/Reuters)

A keeper feeds an orphaned baby elephant with milk from a bottle at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 12, 2014. (Photo by Goran Tomasevic/Reuters)