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

Gestalt psychology is an important means to understand human cognitive processes.

He is an expert in topology.

I am very interested in sociolinguistics.

He is an expert in algebraic geometry.

He is an expert in ethology, and his research is highly regarded worldwide.

He is majoring in oenology.

Paleogeography is a study that researches the past geographical conditions of the Earth.

Paleoecology is a field of study that investigates the relationship between past organisms and their environment.

He is an expert in paleozoology and has a deep knowledge about the ecology of dinosaurs.