Footnote: > "A healthy coral at the Shushah Island Coral Reefscape in the Red Sea" Nope. There is not any healthy coral in that photo. The blue thing is a Tri

Footnote: > "A healthy coral at the Shushah Island Coral Reefscape in the Red Sea" Nope. There is not any healthy coral in that photo. The blue thing is a Tridacna, the famous giant clam.