The salmon shark is a large shark that lives in the North Pacific.

My pet is a Mongolian gerbil.

The kangaroo is a species native to Australia.

It is said that the fur of a fire-rat is resistant to fire.

The fur of a fire rat is very valuable.

A shrew is a small mammal that mainly eats insects.

A light shower occurred in the park, and the children were delighted.

The Japanese grass vole is a small mammal native to Japan.

The harbour porpoise is a small dolphin that lives in the cold sea areas of the Northern Hemisphere.

The lemming is a characteristic small mammal of the Arctic region.