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  • These Pixie Hawkfish, Cirrhitichthys oxycephalus, are engaged in a prolonged battle, probably over disputed territory. Similan Islands Marine National Park, Thailand, Andaman Sea
    hawkfight1.tif
  • A small Tahitian Stingray, HImantura fai, glides above a large Black-blotched Stingray, Taeniura meyeni. Black Rock, Mergui Archipelago, Myanmar, Andaman Sea
    sr30norm.tif
  • A Golden Wentletrap Snail, Epitonium billeeanum, has inserted its proboscis into its favorite prey, a colony of Orange Cup Coral, Tubastraea sp. Soon after consuming each coral polyp, the snail deposits sticky, yellowish eggs in the empty coral skeleton.  The eggs bear a close resemblence to the stinging tentacles of the coral, an adaptation probably designed to discourage predators from eating the eggs.  Richelieu Rock, Thailand, Andaman Sea
    snail9.tif
  • As if living on the dining car of a train, a pair of Imperial Shrimp, Periclimenes imperator, lean over the side of their host, a Risbecia tryoni nudibranch, to feed. Milne Bay, Papua New Guinea, Pacific Ocean
    movefeast5.tif
  • An Orange Anemonefish, Amphiprion sandaracinos, dutifully tends its clutch of eggs. Anilao, Philippines, Pacific Ocean
    20110115_Philippines_0248.tif
  • An Orange Anemonefish, Amphiprion sandaracinos, dutifully tends its clutch of eggs. Well developed eyes of embryos indicate they are nearly ready to hatch. Anilao, Philippines, Pacific Ocean
    20110118_Philippines_0173-2.tif
  • Bornella anguilla nudibranch, feeding on hydroids.  Mergui Archipelago, Myanmar, Andaman Sea
    nb388norm.tif
  • This colorful nudibranch, Nembrotha kubaryana, is feeding on a colony of tunicates. Malaysia, South China Sea, Pacific Ocean
    nb321LM-2.tif
  • These delicate looking nudibranchs, Tenellia sibogae, are mating, surrounded by the stinging hydroids on which they feed. Once ingested, the hydroids' stinging cells are actually kept as live captives by the nudibranchs, transferred to the tips of their colorful cerrata for their own self-defense! Richelieu Rock, Thailand, Andaman Sea
    nb102.tif
  • In a perfect example of symbiosis, the shy Aurora Shrimpgoby, Amblyeleotris aurora, warns its partner, a Randall’s Shrimp, Alpheus randalli, of danger by wiggling its fins. With this signal, both animals dash into the safety of their shared burrow, which is constructed & maintained by the shrimp. Barren Island, Andaman Islands, India, Andaman Sea, Indian Ocean
    20100225_Andamans_0061.tif
  • Muddy Argonaut, a.k.a. Paper Nautilus, Argonauta hians, grasping a jellyfish. Like the small butterfish, the Argonaut uses the jelly to shield it from predators. Argonauts are not true nautiluses, but rather a group of open-ocean octopuses.  Only the females produce the delicately beautiful shell, which is actually an egg case.  Mergui Archipelago, Myanmar, Andaman Sea, Indian Ocean
    argojf1_D800.tif
  • Black-spotted Moray, Gymnothorax favagineus, being serviced by several Bluestreak Cleaner Wrasse, Labroides dimidiatus. Andaman Islands, Andaman Sea, India
    20160305_andamans_0164.tif
  • A male Pharaoh Cuttlefish, Sepia pharaonis, maintains close contact with a female, below, to deny competing males an opportunity to mate with her. During such courtship rivalries, males display spectacular, rapidly changing color patterns, probably meant to intimidate their rivals. Richelieu Rock, Thailand, Andaman Sea, Indian Ocean
    cuttle89.tif
  • This colorful nudibranch, Nembrotha purpureolineata, is feeding on a tunicate. Komodo National Park, Flores Sea, Indonesia
    nb214-2.tif
  • This delicate creature resembles a bunch of eggs cooked sunny-side up, prompting a common name of ?Fried Egg? Nudibranch, Chromodoris annulata. The ribbon-like structure is its egg mass, which the animal is depositing on a shallow limestone wall. Mergui Archipelago, Myanmar/Burma, Andaman Sea. filename: nb131
    nb131.tif
  • Inherently shy, this Aurora Shrimpgoby, Amblyeleotris aurora, warns its partner, a Randall?s Shrimp, Alpheus randalli, of danger by wiggling its fins. With this signal, both animals dash into the safety of their shared burrow, which is constructed & maintained by the shrimp. Barren Island, Andaman Islands, India, Andaman Sea, Indian Ocean
    20100308_Andamans_0050.tif
  • This snakefish, Trachinocephalus myops, is taking on an abitious meal, a helmut gurnard, Dactyloptena orientalis, nearly its own size. Lembeh Strait, North Sulawesi, Indonesia
    Lembeh12MAY07107.tif
  • This Golden Phestilla nudibranch, Phestilla melanobrachia, mimics the stinging tentacles of its prey, Orange Cup Coral, Tubastrea faulkneri. Richelieu Rock, Thailand, Andaman Sea
    nbbb1-2.tif
  • Nudibranch, Jorunna funebris, laying eggs.  Thailand, Andaman Sea
    nb481RF.tif
  • Pickhandle Barracuda, Sphyraena jello, opens wide to be serviced by Bluestreak Cleaner Wrasses, Labroides dimidiatus, Namena Marine Reserve, Fiji, Pacific Ocean
    20151022_fiji_0100.tif
  • Rarely seen by divers, this female Muddy Argonaut, a.k.a. Paper Nautilus, Argonuta hians, appears ready to abandon her egg-laden shell. This specimen had apparently been attacked and injured by a predator, which may have prompted the evacuation. While superficially resembling a nautilus, Argonauts are actually a type of pelagic octopus. Only females produce a shell, which also serves as an egg case. Males are much smaller, and seen even less often than females. Mergui Archipelago, Burma, Andaman Sea, Indian Ocean
    21JAN07OR073CP.tif
  • This rare photo shows a Muddy Argonaut, a.k.a. Paper Nautilus, Argonauta hians, grasping a jellyfish while feeding on a Comb Jelly. The Argonaut apparently uses the jellyfish to shield itself from predators. Argonauts are not true nautiluses, but rather a family of open-ocean octopuses.  Only the females produce the delicately beautiful shell, which is actually an egg case.  Mergui Archipelago, Myanmar, Andaman Sea, Indian Ocean
    argojf2CP.tif
  • This pair of Indian Flame Basslets, Pseudanthias ignitus, are courting in mid-water, as they often do at dusk.  The female, above, pales in comparison to the vividly colored male, which displays its most brilliant coloration during such mating rituals.  The pair mated moments after this photo was taken, releasing eggs and sperm into the water column, to be taken wherever the current carried them.  Similan Islands Marine National Park, Andaman Sea, Thailand
    anth15CP.tif
  • A California Sea Lion, Zalophus californianus, herds a school of Pacific Mackerel, Scomber japonicus, into a tight ball. Magdalena Bay, Mexico, Pacific Ocean
    20211108_Magdalena_0048.tif
  • Sally Lightfoot crabs,  Grapsus grapsus, copulating near water's edge. Galapagos Islands, Ecuador
    crab84norm.tif
  • A Giant Manta, Manta birostris, performs a barrel roll while feeding on plankton just below the surface. Narcondam Island, Andaman Islands, India, Andaman Sea
    2009feb20manta82CP.tif
  • A California Sea Lion, Zalophus californianus, herds a school of Pacific Mackerel, Scomber japonicus, into a tight ball. Magdalena Bay, Mexico, Pacific Ocean
    20211108_Magdalena_0005.tif
  • A colorful nudibranch, Chromodoris geminus, deposits eggs on rocky substrate. Mergui Archipelago, Myanmar, Andaman Sea
    nb373norm-2.tif
  • A colorful nudibranch, Nembrotha kubaryana, stands tall, probably sampling scent trails to locate prey or a mate. Komodo National Park, Indonesia, Pacific Ocean
    nb501norm-2.tif
  • An example of cooperative feeding, two bluespotted grouper, Cephalopholis cyanostigma team up with a white-eyed moray, Siderea thyrsoidea.  Richelieu Rock, Thailand, Andman Sea
    symb35norm.tif
  • A Crown Of Thorns Sea Star, Acanthaster planci, ignores nearby soft corals while devouring hard coral, evidenced by lifeless white skeletons left behind. Barren Island, Andaman Islands, India, Andaman Sea
    20120229_Andamans_0025.tif
  • A female Pharaoh Cuttlefish, Sepia pharaonis, reaches into a crevice to deposit her eggs, one at a time. Mergui Archipelago, Myanmar, Andaman Sea
    cuttle106CP.tif
  • A colorful nudibranch, Nembrotha purpureolineata, feeding on a cluster of tunicates. Komodo National Park, Banda Sea, Pacific Ocean
    20101019_Indo_0002-2.tif
  • A female Pharaoh Cuttlefish, Sepia pharaonis, hovers near a soft coral (far left) while positioning herself to deposit one fertilized egg at a into a crevice to deposit eggs while 3 males compete for the chance to mate with her. During such courtship rivalries, males display spectacular, rapidly changing color patterns, probably meant to intimidate their rivals. Richelieu Rock, Thailand, Andaman Sea, Indian Ocean
    Cuttlefish Romance 16x20
  • This tiny Boxer crab, Lybia tesselata, carries a pair of anemones in its claws, brandishing them like boxing gloves if threatened by a predator. Similan Islands Marine National Park, Thailand, Andaman Sea, Indian Ocean
    crab17.tif
  • Say Ahh! A rare, brilliant yellow Weedy Scorpionfish, Rhinopias frondosa, flexes its jaws, as if bored. The actual reason for this behavior is probably to send a threatening message to the photographer, who has no doubt worn out his welcome. Scorpionfish also stretch their jaws regularly to stay limber for feeding opportunities. Manado, North Sulawesi, Indonesia, Pacific Ocean
    scorp204.tif