He makes a living by fishing as an occupation.

This fish has very vivid nuptial coloration, which it uses to attract females.

His favorite color is blue.

His coat was olive in color.

Her beauty is like a peony.

My hobby is interior decoration.

He is living a life of shabby clothes and plain food.

Chrysophyta are living in this pond.

Chrysophyta perform photosynthesis underwater, supplying oxygen.

His insight really shows a wonderful character.