Hippopotamus live in water but come to the land for food. When they are on land, they hear like you and me with their ears but when they go into the water, their ears close and they hear through their jawbones.
Hippopotamus live in water but come to the land for food. When they are on land, they hear like you and me with their ears but when they go into the water, their ears close and they hear through their jawbones.
