Alex Mustard / Grooved brain coral (Diploria labyrinthiformis) at night with polyps extended to feed, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.
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Alex Mustard / Hawksbill turtle (Eretmochelys imbricata) unusually feeding on hard coral polyps. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean.
01520062
Alex Mustard / Backlit detail of branching fire coral (Millepora alcicornis) showing the hair like polyps, filled with stinging nematocysts. East End, Grand Cayman, Cayman Islands. Caribbean Sea.
01498489
Constantinos Petrinos / Purple short tentacle mushroom coral (Fungia sp.) close up of polyps. Lembeh Strait, North Sulawesi, Indonesia.
01361457
Jeff Rotman / Gorgonian Seafan Coral (Gorgonacea) polyps open to feed at night. South China Sea, Sipadan Island, Borneo.
01361450
Jeff Rotman / Alcyonarian Coral (Dendronephthya spp.) polyps open and feeding. Red Sea, Egypt.
01366939
Alex Mustard / 2020VISION / Skeleton shrimp (Caprella linearis) living within the polyps of Dead man's fingers soft coral. Bard Cave, Bressay, Shetland Islands, Scotland, UK, June
01346971
Juergen Freund / Orange cup coral (Tubastrea faulkneri) with polyps open, Batangas, Philippines.
01332351
Juergen Freund / Sea pen octocoral (Veretillum sp) with polyps out, feeding, Misool, Raja Ampat, West Papua, Indonesia
01332275
Juergen Freund / Bean shaped polyps of an Anchor coral (Euphyllia ancora), a large polyp stony (LPS) coral. Misool, Raja Ampat, West Papua, Indonesia.
01332069
Juergen Freund / Two whip coral gobies (Bryaninops yongei) on a black coral sea whip. Lembeh Strait, North Sulawesi, Indonesia.
01332426
Juergen Freund / Fan coral (Gorgonacea) with open polyps. Misool, Raja Ampat, West Papua, Indonesia..
