The saber-toothed tiger is a type of extinct mammal.

Rodents are widely distributed around the world.

In phonetics, a sibilant is used to represent a specific sound.

We should always remember the power of Kannon in difficult times.

He is doing special exercises to strengthen the incisivus labii superioris muscle.

She is wearing braces.

She started a special exercise to strengthen the incisivus labii inferioris muscle.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.