He observed things with his eyes :)
animal specieshuman species
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I don't know mfer's need effin help round here!
lots of things
Charles Darwin's studies in the natural world actually led up to the discovery of natural selection. Darwin observed the population barnacles and later pigeons to observe variations as they were crossbred within their own species.
Charles Darwin's name was Charles Robert Darwin.
Darwin was able to observe how a few basic creatures evolved and specialized in different roles.
Darwin was able to observe how a few basic creatures evolved and specialized in different roles.
Darwin was able to observe how a few basic creatures evolved and specialized in different roles.
Darwin was able to observe how a few basic creatures evolved and specialized in different roles.
Darwin was able to observe how a few basic creatures evolved and specialized in different roles.
Finches looked alike, but ate different things.