Not that Darwin, the other Darwin. Erasmus Darwin was Charles Darwin's grandfather. A doctor and naturalist in his own right as well. He also was a poet and penned down many verses in his life, often quite racy and sensual (for the pre-Victorian era). Here is a poem titled The Temple of Nature penned in 1802. Erasmus actually formulated his own theory of evolution which is similar in many ways to Lamarck's but includes the concepts of competition and sexual selection. This poem highlights some of that thinking.
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