Demography is an important tool for understanding various aspects of society.

I studied linear algebra at university.

The stylohyoid muscle is part of the muscles of the head and has the role of lifting the hyoid bone.

Please let me hear your opinion, sir.

Please tell me the International Standard Book Number of this book.

This triplewart seadevil living in the deep sea is known for its unique appearance.

The Mitsukuri's lanternfish, a type of triplewart seadevil, is a rare fish that lives in the deep sea.

He was deeply thinking about '稽'.

The United Nations Environment Programme is providing solutions to global environmental problems.

This is my first trip to Japan.