While still a small boy I began to take an interest in natural history.
Natural history was a special interest of his, you see.
"Do you need to know anything about the museum or natural history?"
As a result, he has a wide knowledge of natural history.
From an early age Black was interested in natural history.
There was a good deal of rather basic natural history.
Her later works were on the natural history and travel.
Little is known about the natural history of this species.
"Children are led into an interest in science through natural history," he said.
The natural history of this species is not well known.