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  5. Both of these branches of evolutionary science, are, in my...

Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.

Ernst Haeckel
Law, Connections, Branches
ernst haeckel “the riddle of the universe”
Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.