The Columbus Zoo and Aquarium announced that Izzy, a cheetah that has been at the zoo for seven years, has died. She died recently after not responding to treatment for liver disease. Izzy was brought to the Columbus Zoo along with her three sisters as cubs.

A cheetah known for being the first of the species to give birth to cubs using IVF has died, an Ohio zoo said. Photo by Grahm S. Jones, Columbus Zoo and Aquarium A cheetah that made history as the first of the species to give birth to cubs through in vitro fertilization (IVF) died at an Ohio zoo.