He is majoring in oenology.

He has a deep interest in parapsychology.

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

She has a deep interest in astrology.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.

He is known as an expert in psychoanalysis.

Functional analysis is a branch of mathematics that studies the properties of functions in infinite-dimensional spaces.

He is an expert in paleography, and he is good at deciphering ancient handwritten documents.

I am very interested in marine biology.