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

The anterior scalene muscle is part of the neck muscles and plays a role in assisting with respiration.

By strengthening the posterior scalene muscle, you can reduce neck and shoulder pain.

He is suffering from muscle pain in his middle scalene muscle.

The scalenus minimus muscle is a part of the human body, but it does not exist in everyone.

This is a model of a mutetrahedron.

This is a model of a muoctahedron.

He tried to work hard and study at the same time, and in the end, he experienced the lesson of 'He who chases two hares catches neither.'

This mutetrahedron has a very unusual shape.

This is a 六角四片四角孔ねじれ正多面體, in other words, a muoctahedron.