The ship on which Darwin circumnavigates the world over a five-year period.
Places Darwin visits that range broadly between those created by volcanic action and those developed into atolls.
Darwin visits the two major kinds to be found on the planet, those built from volcanoes and those resulting from the actions of plate tectonics.
Darwin observes most Pacific islands have been formed by their action.
A broad and long expanse of land lying mostly in modern Argentina.
Darwin encounters these harsh places on the western side of South America .
Darwin examines these very closely to learn their origins.
The variety of these Darwin studies ranges from insects to birds and four-legged creatures, and he often takes specimens.
Even in the roughest of country, he manages to find specimens of interest, and he speculates on just...
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