It is very interesting to learn about ancient history.

My life has become busy recently.

He has a deep interest in ancient Japanese practices and customs.

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

He was raised in an orphanage.

He was raised in an orphanage.

Taxonomy is the science of finding, understanding, and naming species of organisms.

He is an expert in ornithology, studying types of birds all over the world.

Taxonomy is an important tool for understanding the diversity of life.

He is an expert in ichthyology and has a deep knowledge of marine life.