Are eel mammals

No. They don't bear live young, they don't have hair. They are a species of fish.
No, eels are actually a type of fish. Eels breath water and not air, are cold blooded and lay eggs. A mammal breaths air, is warm blooded, gives birth to live young, has body hair and the females nurse there babies with milk. Humans, dogs, cats and horses are types of mammals.
No