The fur of a fire rat is very valuable.

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

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

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

We started killing rodents in the house.

We set traps to kill the mice in the house.

The rat stole my food.

Bats are nocturnal animals and are hardly active during the day.

A bat is a small mammal that is active at night.

I saw a flying squirrel in the park.