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.

He is an expert in orthoepy, teaching pronunciation.

Computational geometry is an important field of computer science.

I am learning the basic concepts of differential geometry.

Projective geometry is a branch of mathematics that studies geometric objects such as points, lines, and planes and their relationships.

I am majoring in microbiology at university.

He is interested in geometrical shapes.

Abstract algebra is a branch of mathematics that studies algebraic structures.

He is an expert in paleontology.