Darwin Tree of Life - I think
In mid-July 1837 Darwin started his “B” notebook on Transmutation of Species, and on page 36 wrote “I think” above the first evolutionary tree.
http://en.wikipedia.org/wiki/Charles_Darwin
Available for sale asT-Shirts
In mid-July 1837 Darwin started his “B” notebook on Transmutation of Species, and on page 36 wrote “I think” above the first evolutionary tree.
http://en.wikipedia.org/wiki/Charles_Darwin
Available for sale asT-Shirts
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