Colorful chocolate chip starfish lie scattered on the floor of a seagrass meadow in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

Garden coral, sponges, and other invertebrates grow in a shallow seagrass meadow in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

Lobster pots, Cap aux Meules island, Magdalen Islands, Gulf of Saint Lawrence, Quebec province, Canada, North America

Green Sea Turtle (Chelonia mydas) feeding on a meadow of sea weed, Hurghada, Red Sea, Egypt, Africa

Isle of Harris, part of the island Lewis and Harris in the Outer Hebrides of Scotland. The coastal salt marsh near Northton during sunset. Europe, Scotland, July

Isle of Harris, part of the island Lewis and Harris in the Outer Hebrides of Scotland. The coastal salt marsh near Northton during sunset. Europe, Scotland, July

Green sea turtle (Chelonia mydas) in seagrass - seagrass, sebadal, seba (Cymodocea nodosa). Of all the sea turtles that exist, it is the only omnivorous species, feeding in its subadult and adult state on marine plants and algae. Underwater bottoms of the Canary Islands, Tenerife.

Mediterranean Moray in seagrass, Mediterranean Sea France

Sandager wrasse, Poor Knights Island New Zealand

Tiger shark swimming above a sandy bottom, Bahamas

Green turtle (Chelonia mydas) swimming in the lagoon. South lagoon. New Caledonia.

Green turtle (Chelonia mydas) feeding on algae. South lagoon. New Caledonia.

American crocodile (Crocodylus acutus), Chinchorro Banks (Biosphere Reserve), Quintana Roo, Mexico

Free diver taking pictures of an American crocodile (Crocodylus acutus), Chinchorro Banks (Biosphere Reserve), Quintana Roo, Mexico

Dead fan mussel and diver, Mediterranean Sea. Massive mortality of Noble Pen Shell (Pinna nobilis) infected with the parasite Haplosporidium. Porticcio. Corsica. Mediterranean.

Common cuttlefish (Sepia officinalis)swimming in the Thau lagoon, Bouzigues, Herault, Occitania, France.

Planehead filfish (Stephanolepis hispidus) hunting in a sea meadow (Cymodosea nodosa). Fish of the Canary Islands, Tenerife.

Pearly razorfish, (Xyrichtys novacula), Ponza island, Italy, Tyrrhenian Sea, Mediterranean

Green sea turtle (Chelonia mydas) in seagrass - seagrass, sebadal, seba (Cymodocea nodosa). Of all the sea turtles that exist, it is the only omnivorous species, feeding in its subadult and adult state on marine plants and algae. Underwater bottoms of the Canary Islands, Tenerife.

Green sea turtle (Chelonia mydas) in seagrass - seagrass, sebadal, seba (Cymodocea nodosa). Of all the sea turtles that exist, it is the only omnivorous species, feeding in its subadult and adult state on marine plants and algae. Underwater bottoms of the Canary Islands, Tenerife.

Octopus (Octopus vulgaris) hunting in a marine meadow (Cymodocea nodosa). Marine invertebrates of the Canary Islands, Tenerife.

Longtailed stingray, Poor knights Island New Zealand

Dugong (Dugong dugon) rear view showing the distinctive mammalian tail. Marsa Alam, Egypt. Red Sea

Dugong (Dugong dugon) feeding on a seagrass meadow (Halophila stipulacea), accompanied by a young Golden trevally (Gnathanodon speciosus). Marsa Alam, Egypt. Red Sea

Free diver taking pictures of an American crocodile (Crocodylus acutus), Chinchorro Banks (Biosphere Reserve), Quintana Roo, Mexico

Freediver watching a Green turtle (Chelonia mydas) feeding on seagrass at the bottom. Abu Dabbab Bay, Marsa Alam, Egypt, Red Sea

Green sea turtle (Chelonia mydas) in seagrass - seagrass, sebadal, seba (Cymodocea nodosa). Of all the sea turtles that exist, it is the only omnivorous species, feeding in its subadult and adult state on marine plants and algae. Underwater bottoms of the Canary Islands, Tenerife.

American crocodile (Crocodylus acutus), Chinchorro Banks (Biosphere Reserve), Quintana Roo, Mexico

Diadema sea urchin, Poor knights Island New Zealand

Old wifesswimming, Kangaroo Island Australia