Off the coast of Egypt, the coral reef in the Gulf of Aqaba is flourishing. At a time when ocean warming is threatening corals around the world, this barrier reef is thriving. Swiss and Israeli scientists have found that these corals can withstand very high temperatures and carbon dioxide levels. The reason given is that of provenance. These corals come from the south of the Red Sea: a region where the water temperature is higher than where they are currently found. Photo credit: Guilhem Banc-Prandi