Clouded Leopard Cubs / San Diego Zoo

Two 14-week-old Clouded Leopard cubs, Riki-san and Haui-san, were spotted pouncing, climbing and using each other as trampolines in the San Diego Zoo‘s Children’s Zoo nursery. The cubs arrived earlier this week from the Nashville Zoo at Grassmere, where a very successful breeding program has helped to increase the population of this critically endangered species — via ZooBorns