A U.S.-based group is reporting the first successful artificial insemination birth of a southern white rhinoceros in North America. The announcement came from San Diego Zoo Global, in San Diego, California. It describes the birth as an important step in saving another white rhino species from extinction. San Diego Zoo Global said that mother Victoria gave birth Sunday to a healthy southern white rhino male at the San Diego Zoo Safari Park. “All of us at San Diego Zoo Global are happy with the arrival of this special rhino calf,” said Barbara Durrant. She works as the zoo’s director of reproductive science. Doctors use artificial insemination methods to treat infertility in people and other creatures.