If an asteroid impact wiped out the dinosaurs as believed by the scientific consensus, its effects on evolution seem strained and inconsistent.
It looks like Darwin was as impressed as everyone else by the amazing ingenuity in orchids and could not ignore the evidence for design.
“To those whose delight it is to dwell upon the manifold instances of intelligent design which everywhere surround us, this book will be a rich storehouse.”
Darwin was not at all unsure about the value of his orchid book. He viewed it as presenting the most convincing case for natural selection that he could make.
All the evidence points to Darwin as a generally healthy man with a strong, active libido, normal sexual function, and prodigious fertility.