'Leopard' in the Bible

Therefore a lion out of the forest shall kill them, a wolf of the evenings shall destroy them, a leopard shall watch against their cities; everyone who goes out there shall be torn in pieces; because their transgressions are many, [and] their backsliding is increased.

Can the Ethiopian change his skin, or the leopard his spots? then may you also do good, who are accustomed to do evil.