ADAM HANLON PHOTOGRAPHY

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  • A BSA M20 motorbike, provides a poignant reminder of both the futility of war and the ability of nature to heal. Now completely encrusted in coral, it was part of a cargo on the SS Thistlegorm, destined for the 8th Army in the Western desert. The bike (and lots of other fascinating cargo) has been on the sea bed at Sha'ab Ali, near Ras Mohammed, Egypt since 1941.
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  • A lionfish (Pterois volitans) shows of its impressive mouthparts to warn off the photographer. These fish are voracious predators and are equipped with poisonous spines to deter the unwary. This image was taken in the Red Sea, where they are endemic. Relatively recently however, they have found their way to the Caribbean where they are decimating local fish species that are unprepared to deal with such an efficient predator.
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  • Two Phyllidia marindica nudibranchs prepare to mate. These animals are widespread throughout the Indian and Pacific Oceans.
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  • A harlequin shrimp (Hymenocera picts) in its coral home in the Lembeh Straits, Indonesia. They are found at coral reefs in the tropical Indian and Pacific oceans and can reach about 5 centimetres  in length, live in pairs and feed exclusively on starfish, including crown-of-thorns (Acanthaster) starfish. It does seem to prefer smaller, more sedentary starfish, but as these generally are not sufficiently numerous for its needs, it commonly will attack Acanthaster, both reducing its consumption of coral while under attack, and killing it within a few days.<br />
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Nikon D800,
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  • A bus stop nudibranch (Goniobranchus hintuanensis) lifts its mantle or skirt as it negotiates the sea floor. These species were re classified with the help of DNA analyisis in 2012. Nudibrachs move with the help of a muscular foot, that has rythmic contractions along its length.
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  • Close up of a nudibranch's rhinophore. These animals use these organs to detect chemicals in the water to effcetively find food and potential mates. They also sense water movements, giving the nudibranch information about its environment.
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  • The red on this Nembrotha kubaryana signal danger to any passing animla that thinks that it might be a good meal!
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  • The colors of this Flabellina rubrolineata warn other animals that it may give them a anasty surpise if they try to eat it. It can store the poison from the stinging cells of the animals it eats, and use it as aweapon in its defence.
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  • A striated or "hairy" frogfish (Antennarius striatus) waves its esca or lure in an attempt to attract prey. Some think that the fish's "hairs", which are actually dermal spinules,  are designed to make them look like urchins. My experience is that they are not always found among urchins, so the "hairs" are simply a good way of breaking up the fish's outline for camouflage.
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  • A Nembrotha purpureolineata feeds as it moves across the seabed. In common with many sea slugs, they are specialised eaters, only feeding on tunicates or sea squirts.
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  • Close up stady of the rhinophores of a Marie's Mexichromis nudibranch. (Mexichromis mariei). These sensory organs provide a great deal of information about chemical and scents in the water as well as currents and water movements. Taken in the Lembeh Straits, Sulawesi, Indonesia.
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  • A redline flabellina (Flabellina rubrolineata) strikes a pose. Taken in the Lembeh Straits, Sulawesi, Indonesia.
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  • Risbecia tryoni nudibranchs apparently nuzzle priot to mating. It is likely that they are actually using the chemical receptors on their rhinophores to sense the readiness of the other.
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  • Nudibranch means "naked gills". These animals have external organs that allow them to extratct oxygen from the water. This close up shows the brachial plume, or its lungs.
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  • This Marie's Mexichromis (Mexichromis mariei) is laying a trail or ribbon of eggs. Each species of nudibranch has a distinct pattern when it lays eggs and this allows biologists to identify which eggs belong to which animal.
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  • This Marie's Mexichromis (Mexichromis mariei) is laying a trail or ribbon of eggs. Each species of nudibranch has a distinct pattern when it lays eggs and this allows biologists to identify which eggs belong to which animal.
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  • A clown frogfish  (Antennarius maculatus) makes its ponderous way across the sea bed. Frogfish move using their modified pectoral and pelvic fins to walk along the floor as this one is, not unlike a biped's walking gait  or they can make short "hops"  In the case of the latter, they move their pectoral fins simultaneously forward and back, transferring their weight to the pelvic fins while moving the pectorals forward.
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  • It is obvious how the construction of this crested nembrotha"s (Nembrotha cristata) rhinophores have been designed in order to maximise their surface area. Like the cooling fins on a motornike engine, this increased surface area allows them to sample more water around them and hence obtian a better picture of their environment.
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  • There are still many species of nudibranch that are as yet undescribed by science. This animla rejoices in the name Nembrotha species 2 and is not yet properly taxonomically classified. The use of genetic sequencing has also created many new controversies, with many existing families and species being reclassified. This partcular specimen has tangled with something that has removed one rhinophore.
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  • Nudibranchs will often climb up bits of coral in order to use their extraordinary chemo receptor rhinophores to "taste" the water and sense food sources and threats.
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  • A girdled Glossodoris (Glossodoris cincta) nudibranch makes its way across the sea bed. Nudinbranchs use muscular contractions of their mantles to undulate and allow them to move.
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  • Although it looks like a fire breathing dragon, a tiny Gabriela's tambja (Tambja gabrielae) uses its rhinophores to evaluate its environment.
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  • A Nembrotha kubaryana nudibranch makes its way across an encrusting sponge. Taken in the Lembeh Straits, Sulawesi, Indonesia.
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  • A Yamasu's cuthona (Cuthona yamasui) makes its way across the sea bed
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  • A beautifully colored Dermatobranchus ornatus nudibranch moves across the corals of a reef in Indonesia.
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  • This is the brachial plume, or the gills of this nudibranch. As it lives underwater, it does not breathe in the same way that mammals do, but this organ allows it to extract oxygen from the water.
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  • Magnificent vibrant colors serve as a warning that this Hypselodoris apolegma nudibranch is likely to be an unpleasant meal for any would be predator.
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  • Like a ship plowing its way across the ocean's surface, this many lobed ceratosoma (Ceratosoma tenue) moves across the sea bed.
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  • The vibrant colors of this Hypselodoris apolegma, attempt to warn other animals that it may not be so good to eat.
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  • A streaked Chromodoris (Chromodoris strigata) turns away from the camera. The rhinophores allow the animal to make sense of its environment and are complex sesnory organs. Taken in the Lembeh Straits, Sulawesi, Indonesia.
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  • Not all nudibranchs are brightly colored! This Rudman's phyllodesmium (Phyllodesmium rudmani ) has evolved to look like the polyps of the Xenia soft corals that it normally inhabits.
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  • Portrait and detail of the "hairs" of a striated frogfish (Antennarius striatus). Lembeh Straits, North Sulawesi, Indonesia.
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  • Underwater Images
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  • Geometric Chromodoris (Chromodoris geometries) moving across its substrate of a piece of fallen timber. In common with many nudibranchs, this Chromodoris feeds on hydroids, coral, sponges and anemones. As it moves, its mantle "waves" up and down.
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  • Spotted porcelain crab (Neopetrolisthes maculatus) on its host anemone. It is adopting a defensive position, warding me off....
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  • Far from the idyllic "Nemo" life in a host anemon, within a group of clownfish, there is a strict hierarchy of dominance. The largest and most aggressive female is found at the top. Only two clownfish, a male and a female, in a group reproduce through external fertilization. The clownfish are hermaphrodites, meaning that they develop into males first, and when they mature, they become females. If the female clownfish is removed from the group, such as by death, one of the largest and most dominant males would become a female. The rest of the remaining males will move up a rank on the hierarchy.
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  • A rusty parrotfish (Scarus ferrugineus) displays its amazing mouth parts. These form the major component that parrotfishes use for their duties as the constant gardeners of the reef. They play a crucial role in keeping it healthy, suppressing weed, removing sediment and helping the corals to regrow after a setback.
    Smile!
  • Taking in the wreck of the Ghianis D.
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  • Anemone fish threatens me if i come any closer.
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  • A wreck is covered by marine life.
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  • Taken at night, soft coral extends its tentacles to catch a meal from passing plankton.
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  • Actually armed with poisinous fangs, the tiny mimic blenny imitates other fish in order to score a meal.
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  • The "sharp end" of a reef lizardfish (Synodus variegatus) showing its many teeth. Their camouflage allows these these ambush predators feed largely on fish that they capture as they swim by.
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  • Two crested nembrotha (Nembrotha cristata) nudibranchs doing their bit for survival of the species. Komodo, Inonesia
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  • These  Clarks Anemonefish (Amphiprion clarkii), in common with many reef fish, show that you are too close by "yawning" at you. Komodo, Indonesia.
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