Wallace, Darwin's Forgotten Frenemy

Everyone knows the name Charles Darwin, but his lesser known frenemy, Alfred Russel Wallace, was developing a lot of the same ideas around the same time.
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Sources:
https://www.britannica.com/biography/...
http://www.npr.org/templates/story/st...
http://www.bbc.com/news/uk-wales-2154...
http://evolution.berkeley.edu/evolibr...
https://www.wired.com/2011/07/0701dar...

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