What is an animal who lives on land and water?

That's a great question! There are many animals who live on land and water, but some common examples include:

* Amphibians: Frogs, toads, salamanders, and newts all start their lives in water as tadpoles and then transition to land as adults.

* Reptiles: Some sea turtles spend most of their lives in the ocean but come ashore to lay their eggs.

* Mammals: Otters, beavers, hippos, and some species of crocodiles are examples of mammals who live both in and near water.

* Birds: Many birds, like ducks, geese, and swans, are semi-aquatic and spend time both on land and in water.

Do you have a specific type of animal in mind? If you tell me more about what you are looking for, I can give you a more precise answer!