He is passionately engaged in extracurricular activities.

His nature is very kind.

Detailed information is needed to understand the nature of that project.

I was moved by his sincerity.

His nature is very kind.

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.