Yeah, but with this new study out about how the Arctic Ocean was once so warm, you really have to wonder how the corals got by in the warm world of that time. Are the mechanisms just unavailable now? Was it only very specific corals that made it through that heat and all the subsequent diversity since then? If the diversity was there then, why are the corals having such problems with warming now? Interesting stuff and I think all of the qualifications are just because they hadn't expected these results and no one knows the answers. Cool time for science, at least.