Scoobes on 07 October 2012
2 years on and science has moved on a bit. I think this looks like an epigenetic change based on temperature but I have no way of knowing as I can't find any studies looking at chemical modifications on the DNA of this lizard and the associated genes. This is pretty much what Slimebeast said in the previous thread.
If it is epigenetic then that doesn't eliminate evolution however. If a lizard(s) remains in a certain temperature environment for long period, those chemical modifications to their DNA can become more permanent, switching off genes and subsequently be passed down to offspring.
