 So, it's the mammoth. You find mammoth fossils from the Arctic Circle all the way, they dug them up when they were building the subways in Mexico City. So, that's quite a range of climates. It doesn't make any sense. However, if the pole was in a different location, all of these fossils would be in the same climate zone. Again, you have to sort of visualize, it's hard to do it on radio.