In this forest, various organisms live by building a relationship of mutualism.

The relationship between this seaweed and the clownfish is called commensalism.

He called America 'Meriken' in old language.

I went to see the statue of Monju Bosatsu.

This rock contains stibnite.

He chose euthanasia to be freed from the pain of his illness.

Yasumiasa is my best friend.

He decided to apply euthanasia to his sick dog.

Yasuo is my best friend.

Anoi is my best friend.