Cat fleas can be found on which animals besides cats?

• A. Dogs only
• B. Opossums only
• C. Dogs and opossums
• D. Humans

Answer: (C)

Cat fleas can parasitize more than just cats. They’re not limited to one host and will infest a range of mammals that share the same environment. Dogs are a common domestic host because they often live in close contact with cats and humans, while opossums are known wildlife hosts that can carry fleas into yards, homes, or areas near human activity. Because fleas can move between these animals and feed on blood from multiple hosts, the combination of dogs and opossums best reflects the real spread of cat fleas beyond cats. Humans can occasionally be bitten by fleas, but they’re not typical long-term hosts, which is why the option that includes both dogs and opossums is the most accurate.