My bacterial genetics prof starting talking about how some scientists think that certain species can choose to evolve...whether this is true or not, I don't really care...but this is how Bob evolved
I had not heard of it either....my professor is really good about telling us about weird and interesting theories (and especially telling us his opinions on them).
I am not too sure. My professor is really good at finding interesting theories, but he only tells us his opinion on the matter and not the full details of them. I think it may just be for bacteria though, but it wouldn't surprise me if someone was out there saying this was possible for multi-cellular organisms.