It looks like Darwin was as impressed as everyone else by the amazing ingenuity in orchids and could not ignore the evidence for design.
I have no problem with this work in mice. But the scientists want to take this technology into human experimentation.
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.
They said they wouldn’t do it, but of course they did. Scientists working in China — where else? — have constructed embryos that are part human and part monkey.
What is a body plan if there is no plan behind it? It is not a body but a blob, a formless plop of biological matter.