Snow Leopard Mother and Cub Keep Watch at Brookfield Zoo

Sarani (R) stands with one of her two four-month-old female snow leopard cubs as the cubs make their public debut at at Brookfield Zoo on October 7, 2015 in Brookfield, Illinois. The two cubs were born to 4-year-old mother Sarani and 5-year-old father Sabu on June 16, 2015 at the suburban Chicago zoo as part of a pairing based on a recommendation from the Association of Zoos and Aquariums' Snow Leopard Species Survival Plan to help increase a genetically diverse and geographically stable population of this endangered species. Photo by Brian Kersey/UPI