Yet it was the work of naturalist Alfred Russel Wallace that pushed Darwin to finally release his theory.

VOA: special.2009.12.01

Another naturalist,Alfred Russel Wallace, had independently written a paper that contained ideas similar to Darwin's concerning evolution.

VOA: special.2009.02.25

More than two thousand years ago, the Roman naturalist Pliny the Elder observed its harmful effects.

VOA: special.2009.11.17

The two became friends. John Henslow suggested that Charles Darwin take the unpaid position of naturalist for a trip on the British ship H.M.S.Beagle.

VOA: special.2009.02.25

Many years ago,a French naturalist, the Count de Buffon, wrote some books about natural history.

VOA: special.2010.08.08

He too was a naturalist, as well as a farmer,inventor,historian, writer and politician.

VOA: special.2010.08.08

The story of the young British naturalist Charles Darwin combines both of these.

VOA: special.2009.02.27

And others,like the French naturalist Jean-Baptiste Lamark, had proposed ways this could happen.

VOA: special.2009.02.25

Naturalist Charles Darwin published "On the Origin of Species" in eighteen fifty-nine.

VOA: special.2009.12.01