Rare Rhinoceros Born at the Cincinnati Zoo

The first birth of a Sumatran rhinoceros in captivity in 112 years is a landmark development in the effort to save the endangered species, wildlife experts said.

The birth of the healthy male calf at the Cincinnati Zoo and Botanical Garden culminated weeks of an anxious vigil by zoo employees and volunteers who watched monitors to collect information about the pregnant mother.

“I believe that the probability of survival of this species has moved from somewhere below 50-50 to significantly above it,” said Tom Foose, program director of the International Rhino Foundation.