He values his private life.

He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

Mammals can maintain a constant body temperature.

Primates are a group of mammals that include humans.

Crustaceans are a type of marine life, including crabs and shrimps.

Insects are an important part of the natural world.

My grandfather is skilled in raising domestic fowls.