He touches on other biological explosions, including the Avalon explosion, the Triassic explosion, and the origin of flowering plants.
“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.
If you look closely at beach sand, you may find some grains that stand out. They are shaped like spirals, stars, or striated cones.
One genuine surprise in recent decades has been the discovery that plants have nervous systems like animals.