A cooperative approach to reintroduction by ecologists and biologists could improve research techniques.

Presentations by marine biologists will add colour and context to your cruise.

However, these ideas are still different from the theory of evolution as accepted by biologists.

This is done through monitoring and studying by biologists.

The study of fossils by geologists and biologists is known as paleontology.

This, I believe, has been the conclusion generally arrived at by biologists for some years past.

He is employed as a programmer, creating data analysis software for use by biologists.

The extent of the current extinction event is still being researched, debated and calculated by biologists.

After inspection by marine biologists, it is revealed to be just a juvenile.

Dutch explorers visited the island a number of times, and there have been at least two recent visits by biologists.