The Cincinnati Zoo plans to mate its lone female Sumatran rhino, 9-year-old Suci, with the only other member of the species on the continent. The hitch: The would-be father is Suci's little ...

And what goes for the Sumatran rhino goes for a growing list of species ... when one count showed just 325 wild bison left in North America, the Bronx Zoo started a captive-breeding program ...

The researchers sequenced and analysed the first whole Sumatran rhino genome from a sample belonging to a well-known male at Cincinnati Zoo. Ipuh lived at the zoo from the 1990s, but died four ...