It is a great diving spot, thanks to the red coral that gives the Red Sea its name, but as a duty-free destination where people come to shop, the city has ambitions to be more like Dubai.

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Dozens of natural and artificial wonders are displayed on the shelves, including a branch of flaming red coral that appears to be growing from the top of a human skull.

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You will see also on our Red Sea programme how some coral can possibly adapt to relatively high water temperatures.

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To make the mice glow red, they inserted a gene taken from coral and inserted it into the mouse genome.

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They are now also one of the most endangered: As of the end of this year, for the first time in history coral reefs have been included on the World Conservation Union's Red List of Threatened Species.

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When the Planetary Coral Reef Foundation's research ship recently needed help getting permission from the Egyptian government to enter the Red Sea, Ludwig made several phone calls, and the mission was under way.

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