Is a opossum a amphibian

No, an opossum is not an amphibian; it is a marsupial. Marsupials are mammals that typically carry and nurse their young in pouches. Opossums are known for their ability to play dead as a defense mechanism and are often found in North America. Amphibians, on the other hand, are a distinct class of animals that include frogs, toads, and salamanders, characterized by their dual life stages in water and on land.