This is a type of coral called a sea pen, taken from an area called the Hatton Sill at a depth of 698 m. Sea pens live on soft areas of the ocean floor, anchoring themselves in the sediment with ...

Elkhorn coral helps form the skeleton of a healthy reef, but more than 95% of the Elkhorn coral off Florida has been wiped out. Scientists have created the "Flonduran" crossbreed to solve the problem.