He is an expert in paleoanthropology, conducting research on the origins of mankind.

He is a specialist in that field.

He is an expert in anthropology.

What is the origin of this word?

This festival is held every year.

He is an expert in paleoanthropology, investigating archaeological sites around the world.

It is very important to learn the wisdom of people from long ago.

It is very important to learn the wisdom of people from long ago.

I'm very happy to meet an old acquaintance again.

It is very important to learn the wisdom of people from long ago.