He is a renowned anthropologist, traveling around the world to study human cultures.

The White House is the center of Russian politics.

He is an expert in primatology and is engaged in the study of gorilla behavior.

He is an expert in physical anthropology.

He is an expert in physical anthropology, conducting research on human evolution.

He was hit by a pitch and advanced to first base.

After we had a big fight, we became a stronger relationship, just like the proverb 'after the rain, the ground hardens'.

I obtained the natural coat certificate for my dog.

Decolonization is an important process for many countries to achieve independence.

Alkaline earth metals are one of the main components of the earth's crust.