Sometimes, people email me with good questions. Here’s one.
When I was a kid, my own visualization of evolution was Lamarckism.
But I didn’t know it. In reading Dawkins and others, I know it doesn’t exist. But it seems this article is claiming it does to some extent. Can you comment? I’m curious as to the current consensus as I’ve been reading a lot about genes that can be turned on and passed to offspring. Can you take a look?
This is a fairly common question. Looked at naively, developmental plasticity seems to be Lamarckian — we’re talking about organisms responding with morphological changes to their environment, just like Lamarck’s example of the giraffe stretching its neck. But that’s only the first step; the transmission of a distribution of traits to the next generation is purely Darwinian.