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

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 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.

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.