These attacks were well documented by trained biologists.

The larvae are quite similar, requiring a trained developmental biologist to identify between species.

The writer Sigurd Hoel (1890-1960) asked: "When did it become a reason for deportation that one looked in a microscope when one was not a trained biologist?"

But he argues that it will be a pond that is professionally managed by trained biologists.

Not only that - and maybe only a trained developmental biologist can appreciate the full shock and horror of his finding - the cells sported long, active hairs.

Additionally, he promoted the idea of a trained biologist or naturalist in national parks to conduct public education programs for visitors.

Ecologies tend to familiar patterns, but no trained biologist has had opportunity to investigate.

But since the majority of these confidences were extremely personal and of interest only to a trained biologist, he had decided that it would be best not to encourage them.

A trained biologist could easily have counted a dozen species of insects without even getting close.

Gagné's wife, Pat, is a trained biologist.