Answer: they’re mammals
Explanation:
Whales differ from fish because even though they are aquatic animals they are mammals and have the surface for oxygen. They also differ from fish by birthing live young
Whales and fish are very interesting animals. Most people think they are very alike but in reality there is a lot about them that are not the same. Fish have gills that filter oxygen from the water, whales have a blow hole that they come up for air and take a breath. whales are marine mammals as well fish well are fish. they lay eggs and dont need to go up to the surface and get air.
