My Friday Post Has Been Hijacked!

Hijacked, I say.
Carl Zimmer and De Rerum Natura have both written on I subject I was going to post about on Friday. I had found a great article I was going to use to get on the Friday Ark. Allow me to explain. Yesterday, I stumbled across this at New Scientist. It concerns a species of plant called weedy cress. Apparently, weedy cress is able to, somehow, revert to grandparental genotypes. The authors of the paper hypothesize that backup copies of the grandparental genotype are kept in the form of RNA. Fascinating stuff. I was going to post about it - had found som cool links here, here, and here. Oh Well. They are much better writers than I am. Check them out.