From Longman Dictionary of Contemporary Englishleopardleop‧ard /ˈlepəd $ -ərd/ noun [countable] 1 
HBAa large animal of the cat family, with yellow fur and black spots, which lives in Africa and South Asia2 → a leopard can’t change its spots
HBAa large animal of the cat family, with yellow fur and black spots, which lives in Africa and South Asia2 → a leopard can’t change its spotsExamples from the Corpus
leopard• But we also saw all kinds of animals, like monkeys, parrots, deer, and even a leopard.• The basic leopard is spotted almost from nose to tail.• Ten miles straight up, at the mercy of bears, leopards and tigers.• During his chaste vigil he had a vision of wolves, bears, lions, leopards and unicorns.• Some leopards specialize in catching birds.• He was holding a stout branch, and impaled upon it was the bloody head of the leopard.• Singly, the leopard would defeat them, but together they can drive it away.Origin leopard (1200-1300) Old French leupart, from Late Latin leopardus, from Greek, from leon “lion” + pardos “leopard” 