He is an expert in ethology.

This area is rich in bedded cupriferous iron sulphide deposits.

He is researching on the pathogenesis and treatment of early-onset diabetes.

You should not be deceived by the deceptive advertising of this product.

The artificial satellite is orbiting around the earth.

The study of artificial life is a new frontier in science.

Higher fatty acids play an important role in our health.

This food is rich in higher fatty acids.

He was moved by the view from the top of the skyscraper.

My grandfather was a teacher at a national elementary school.