Mammals can maintain a constant body temperature.

The short-finned pilot whale is a type of marine mammal, and its name comes from the size of its head.

My name is Tanaka.

This is a kind of flower.

His house is very big.

He suffered a deep wound to his head.

He is known as a giant in that industry.

He is known as a prominent person in that industry.

We learned about the protection of the main sea.

The beluga whale lives in the Arctic Ocean.