The Atlantic puffin is one of the most commonly seen birds in the North Atlantic.

He was considered the wisest among the ignorant, like a bat in the land of the blind.

The Papua fire-eating bird, with its unique appearance, is a bird you won't forget once you see it.

In learning Japanese grammar, understanding the upper two-step conjugation is important.

When learning Japanese grammar, it is important to understand verbs of the upper monograde conjugation.

He succeeded in a difficult project with the spirit of 'ishi no ue ni mo sannen', which means great works are performed by perseverance.

The levator palpebrae superioris is the main muscle for opening the eyes.

The obliquus capitis superior muscle is part of the neck muscles, helping to tilt the head.

The superior pharyngeal constrictor plays a role in pushing food into the esophagus when swallowing.

The suprahyoid muscle is one of the muscles that help in mastication and swallowing.