'Leopard' in the Bible

Therefore a lion from [the] forest will kill them, A wolf [from the] desert plains will devastate them. A leopard [is] watching their cities, everyone [who] goes out from there will be torn, because their transgressions are many, their apostasies are numerous.

Can a Cushite change his skin, or a leopard his spots? [Then] you also will be able to do good, [who] are accustomed to doing evil.