SCUBAZOO / SCIENCE PHOTO LIBRARY SCUBAZOO / SCIENCE PHOTO LIBRARY
SCUBA diving on a reef. SCUBA diver removing a crown of thorns starfish (Acanthaster planci) that has been eating corals on a reef. This starfish is a coral reef predator (corallivore) that preys on the coral polyps by extending its stomach over them and releasing digestive enzymes. This liquefies the coral's tissue, which the starfish then absorbs. Photographed in the Lembeh Strait, Sulawesi, Indonesia.
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