Shane Gross / Bottlenose dolphin (Tursiops truncatus) underwater rubbing herself on a sponge off Eleuthera, Bahamas.
Shane Gross / Graysby fish (Cephalopholis cruentata) a type of grouper, hiding in a sponge off Eleuthera, Bahamas.
Alex Mustard / RF - Spinyhead blenny fish (Acanthemblemaria spinosa) extends out of its hole in a red sponge to snare passing food. Caribbean Sea (This image may be licensed either as rights managed or royalty free...
Alex Mustard / Yellow tube sponge (Aplysina fistularis) on a coral reef, with the camera rotated during the long exposure. East End, Grand Cayman, Cayman Islands. British West Indies. Caribbean Sea.
Alex Mustard / Spotlight goby (Gobiosoma louisae) looking out from inside a Yellow tube sponge (Aplysina fistularis), growing on a coral reef. Bloody Bay Wall, Little Cayman, Cayman Islands, British West Indies. Car...
Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) resting on a yellow sponge, in front of red soft coral (Eunephthya rubiformis). Browning Pass, Port Hardy, Vancouver Island, British Columbia. Canada. Nor...
Olga Kamenskaya / Endemic freshwater sponge (Lubomirskia baicalensis), Lake Baikal, Siberia, Russia. October.
Olga Kamenskaya / Endemic sponge (Lubomirskia baicalensis), Lake Baikal, Siberia, Russia. September 2013
Claudio Contreras / Giant barrel sponge (Xestospongia muta) Cozumel Reefs National Park, Cozumel Island, Caribbean Sea, Mexico, February
Olga Kamenskaya / Diver with Baikal sponges (Lubomirskia baicalensis). Lake Baikal, Russia, March 2007. Model released.
Alex Mustard / Portrait of Blacktip grouper (Epinephelus fasciatus) resting in Barrel sponge (Xestospongia testudinaria) Mabul Island, Sabah, Borneo, Malaysia. Sulawesi Sea.
Franco Banfi / Nudibranch (Cratena peregrina) on a sponge, Ist Island, Croatia, Adriatic Sea, Mediterranean.
Alex Mustard / A long exposure renders Bar jacks (Carangoides ruber) as ghostly trails as they swim around a sponge, on a coral reef, at night. East End, Grand Cayman, Cayman Islands. Overall winner of GDT competiti...
Franco Banfi / Scuba diver and yellow sponges (Aplysina cavernicola) on Brioni Steamship wreck, Vis Island, Croatia, Adriatic Sea, Mediterranean. Model released.
Brandon Cole / Finger Sponge (Raspailia topsenti) and Demoiselle (Chromis dispilus) fish swimming by, 13 feet deep. Poor Knights Islands Marine Reserve, New Zealand, Pacific Ocean.
Sue Daly,Sue Daly / Reef wall with sponge and bryozoan growth, Poor Knights Islands, New Zealand, January
Franco Banfi / Detail of sponge (Chalinula nematifera) Maldives, Indian Ocean
Linda Pitkin / 2020VISION / Yellow staghorn sponge (Axinella dissimilis), Lundy Island Marine Conservation Zone, Devon, England, UK, May.
Linda Pitkin / 2020VISION / Sunset cup coral / Yellow cave coral (Leptopsammia pruvoti), on sponge covered rock face, Lundy Island Marine Conservation Zone, Devon, England, UK, May
David Shale / Male and Female glass shrimps on Glass sponge (Hexactinellida) from coral seamount, SW Indian Ridge, Indian Ocean, December 2011
Alex Mustard / Lionfish (Pterois volitans) sitting on the rim of large sponge on Bloody Bay Wall, Little Cayman, Cayman Islands, Caribbean Sea.
Alex Mustard / Yellow tube sponge (Aplysina fistularis) top view of tubes with water swirling around them, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.
Alex Mustard / A diver exploring a coral reef with formation of brown tube sponges (Agelas conifera) red rope sponges (Amphimedon compressa) and deepwater sea fans (Iciligorgia nodulifera) East End, Grand Cayman, Ca...
Jeff Rotman / Yellow tube sponge (Aplysina fistularis) Red Sea, Egypt
Brandon Cole / Luxurious invertebrate growth on coral reef at 120 feet deep. Crinoids (Davidaster) mixed among many species of sponges and coral. Dominica, Caribbean Sea, January.
Brandon Cole / Giant Barrel Sponge (Xestospongia muta) on top of reef is a fish cleaning station. Small yellow fish in background (juvenile Bluehead Wrasses, Thalassoma bifasciatum) swarm about, remove parasites and...
Jurgen Freund / Massive barrel sponge (Xestospongia testudinaria) and diver. Tubbataha Reef National Marine Park, Palawan, Philippines, April 2009. Model released.
Jurgen Freund / Elephant ear sponge (Ianthella basta) with a Triplefin blenny resting on it, West New Britain, Papua New Guinea.
Jurgen Freund / Detail of Orange elephant ear sponge (Agelas clathrodes) with crinoid / featherstar attached, Kimbe Bay, West New Britain, Papua New Guinea.
Jurgen Freund / Brown tube sponge (Agelas tubulata) in the reef, North Sulawesi, Indonesia.
Jurgen Freund / Pink / hairy squat lobster (Lauriea siagiani) camouflaged on pink sponge, Bali, Indonesia.
Jurgen Freund / Nudibranch (Jorunna funebris) feeding on its preferred sponge, Kimbe Bay, West New Britain, Papua New Guinea
Jurgen Freund / Giant barrel sponge (Xestospongia testudinaria) studded with crinoids / featherstars with diver in the background, Kimbe Bay, West New Britain, Papua New Guinea.
Jurgen Freund / Details of Orange elephant ear sponge (Agelas clathrodes) with crinoids / featherstars attached, Kimbe Bay, West New Britain, Papua New Guinea