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Hybrids Might Play an Unappreciated Role in Evolution
- thaumasiotes 7y agoAs always, no. The problems with the biological species concept were well known decades ago. They are covered in standard high school textbooks. Language like this: > What is a species? It’s a question that has agonized scientists since well before Darwin. With some exceptions, the thinking has landed on an evidently firm reproductive barrier: Members of different species don’t mate. If they do, their offspring are sterile and can’t contribute to future generations. The reproductive barrier has thus created a useful demarcation of “what is a species”—until a deep dive into butterflies showed otherwise. is deeply dishonest.