Floc On Gulf Coral

Two years after being covered in an oil substance, from the Deepwater Horizon oil spill in 2010, deep-sea corals were colonized by hydroids and their branches began to break off. 
(Courtesy Charles Fisher)

Two years after being covered in an oil substance, from the Deepwater Horizon oil spill in 2010, deep-sea corals were colonized by hydroids and their branches began to break off.