He is an expert in paleoanthropology, studying the lives of ancient humans.

He is majoring in humanities at university.

He is a world-renowned osteologist.

I love stir-fried pork.

That person is my friend.

I saw many animals at the zoo.

There are various types of plants in my garden.

Protists are single-celled organisms that live in water.

Mineral oil is often used in the manufacture of cosmetics and pharmaceuticals.

Vertebrates are organisms whose part of the skeleton is composed of a spine.