The first-ever successful artificial insemination of an endangered Indian rhino occurred at the Cincinnati Zoo in August 2006, thanks to technology developed by the zoo’s CREW (Center for Conservation and Research of Endangered Wildlife).
Although the resulting calf was delivered stillborn in January, the procedure, which successfully used frozen-thawed sperm, is still a big achievement.
Before, zoos had to transport rhinos to other zoos or to the wild to mate. Artificial insemination optimizes genetic matches without the risking transport and aggressive mating habits. In the future, the technology could also allow specialists to collect and transport sperm from rhinos in the wild.

The Indian rhino is one of four Asian rhino species (the others are White, Javan and Sumatran); all four species are endangered because of a disappearing habitat and poaching for horns.

6,000 lbs - The maximum weight of an Indian rhino.
$30,000 - The cost of sending The Zoo’s Sumatran rhino to Sumatra last year to mate.
$10,000 - The cost of the research that developed the artificial insemination procedure for rhinos.
60 - The number of Indian rhinos in captivity. There are fewer than 2,000 in the wild.
1 - The number of institutions to successfully bring the Sumatran rhino into captivity (there are fewer than 300 in the wild). The Cincinnati Zoo has also produced three Sumatran rhino calves.
$35,000 - The market price for one kilogram of Asian rhino horn, believed in traditional Asiatic medicine to have aphrodisiac qualities, “Which it doesn’t,” adds The Zoo’s Monica Stoops.  
75 - The number of animal species in the Cincinnati Zoo’s “Frozen Zoo” sperm bank.
Source: Monica Stoops, reproductive physiologist with the Cincinnati Zoo’s Center for Conservation and Research of Endangered Wildlife.