The bull shark is one of the few sharks that can live in freshwater.

The great auk is a species of bird that has become extinct.

The bat-eared fox is known primarily for eating insects.

The Bonin flying fox is designated as an endangered species.

The Ryukyu flying fox is a large bat that lives in the Ryukyu Islands.

I have been to Amami.

His heart is vague and dark.

He is from a commoner background and succeeded by working hard.

He was watching the enemy's movements from the watchtower.

Hiroshi is my best friend.