The leopon is the offspring of a male leopard and a lioness. The head looks similar to a lion, with a partial mane, while the body looks more leopard-like. These animals are only bred in zoos, and would never occur in the wild.
Many cubs have been bred in Japan and Germany, but it’s rare for them to survive to adulthood. If they do, the animals are generally sterile. The most successful breeding program was at Koshien Hanshin Park in Japan, where 5 cubs (though sterile) did survive for a period of time.