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  • This is a head-on view of Pterosoma planum, a species of predatory snail that lives in the open oceans of the Indo-Pacific region. The animal's gills are to the rear and raised above the animal in this image, with its eyes and feeding proboscis oriented forward and to the bottom.
    pterosoma-planum-pelagic-snail-japan...tif
  • This is a male Pfeiffer's Top Shell (Tegula pfeifferi) engaged in broadcast spawning. Unlike the dramatic pulse ejection of eggs by females, males of this species dribble sperm into the water a little at a time, with frequent pauses.
    tegula-pfeifferi-top-shell-broadcast...tif
  • Tiny yellow Tambja sp. nudibranch in Lembeh Strait, North Sulawesi, Indonesia. Orange rhinophores with purple base and tips, white gills with purple tips.
    yellow-Tambja-nudibranch-lembeh-stra...tif
  • Rear view of Chromodoris geometrica nudibranch in Ambon, Indonesia
    Chromodoris-geometrica-nudibranch-am...tif
  • Rear view of a Chromodoris kuniei nudibranch, taken in Simpson Harbour, Rabul, New Britain, Papua New Guinea
    Chromodoris-kuniei-nudibranch-simpso...tif
  • Gymnodoris aurita devouring a Marionia sp. nudibranch. The entire process took about 50 minutes.
    Gymnodoris-aurita-eating-Marionia-nu...tif
  • A small Chiroteuthidae squid dropped by a sperm whale. This family of squid are generally small to medium in size, soft and gelatinous, slow moving. This one looks too small to have been a targeted meal for a sperm whale.
    whiplash-squid-dropped-by-sperm-whal...tif
  • Chromodoris hintuanensis lifting its skirt
    Chromodoris-hintuanensis-nudibranch-..tiff
  • This is a pair of pharoah cuttlefish (Sepia pharaonis), female in the foreground. Having copulated with the male, the female is preparing an egg via internal fertilization, which she will then deposit under a nearby rock. The male in the background stands guard to ward off other males that might approach.
    sepia-pharaonis-cuttlefish-reproduct...tif
  • This is a female broadclub cuttlefish (Sepia latimanus) depositing eggs among branches of table coral (Acropora sp.) shortly after mating.
    sepia-latimanus-cuttlefish-depositin...tif
  • This Japanese pygmy squid (Idiosepius paradoxus) has its arms wrapped around its prey, a skeleton shrimp (Caprellidae), which is a type of amphipod. Here the skeleton shrimp is clinging to the eelgrass by a single claw, but it eventually succumbed. Pygmy squids use venom to paralyze their prey, then inject digestive enzymes into their food. They ingest the liquified contents and discard the exoskeleton.
    idiosepius-paradoxus-eating-caprelli...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 9 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 3 in a series of 15.<br />
.
    amphioctopus-marginatus-bottle-indon...tif
  • This is the internal shell of a deep-water cephalopod called a Ram’s horn squid, also known as a little post horn squid (Spirula spirula). This cephalopod is the only known member of its genus. The internal shell is both robust and buoyant, so often found on beaches. This one washed up during a mass stranding of thousands of Physalia utriculus amd other animals of the open-ocean, pelagic community. Attached to the shell were pelagic goose barnacles (Lepas sp.).
    rams-horn-shell-spirula-goose-barnac...tif
  • This is a dead mature female Ancistrocheirus lesueuri squid, which is a mesopelagic cephalopod living in the range of 200 to 1000 meters depth. This specimen was found at the surface, floating upside down as pictured here. There are photophores visible on the ventral surface (facing up) and hooks on both clubs of the feeding tentacles. This squid is an important part of the diet of sperm whales in the southern hemisphere. There were many sperm whales in the area when this was photographed. This species is ammoniacal, meaning it stores ammonia ions in the arms, head and mantle tissue for buoyancy. Why this specimen would only float upside-down is unclear. Perhaps the ammonia (which is lighter than sea water) was the cause. This specimen was 40cm to 45cm.
    ancistrocheirus-lesueuri-sharpear-en...tif
  • Adult female sperm whale (Physeter macrocephalus) at the ocean surface with her mouth open. This whale has just surfaced from foraging in deep water. There is a small piece of squid on the tip of her lower jaw. She has many visible scars left by the suckers of Architeuthis sp. giant squid, which seem to be among the primary prey hunted by sperm whales in the waters of Ogasawara (the Bonin Islands) in Japan.
    sperm-whale-mouth-open-ogasawara-jap...tif
  • This is a 351 centimeter segment of an Architeuthis giant squid tentacular arm left in the water by a sperm whale (Physeter macrocephalus) after it breached. The suction cups on the tentacular clubs are lined with sharp, serrated teeth made of chitin. Photographed in Ogasawara, Bonin Islands, Japan.
    tentacular-club-architeuthis-giant-s...tif
  • Unique backlighting for Hypselodoris kanga nudibranch in the Lembeh Strait, North Sulawesi, Indonesia
    Hypselodoris-kanga-nudibranch-with-b...tif
  • Small, inquisitive broadclub cuttlefish (Sepia latimanus) that accompanied for much of a dive, hovering nearby and even approaching to inspect one of my camera rigs. The cuttlefish adjusted its coloration to match the background, but turned yellow briefly when it swam up above the substrate. Lembeh Strait, North Sulawesi, Indonesia
    cute-yellow-broadclub-cuttlefish-sep...tif
  • Broadclub cuttlefish (Sepia latimanus) resting on the dark sand bottom of the Lembeh Strait in North Sulawesi, Indonesia
    broadclub-cuttlefish-Sepia-latimanus...tif
  • Hypselodoris zephyra nudibranch in Lembeh Strait, North Sulawesi, Indonesia
    Hypselodoris-zephyra-nudibranch-lemb...tif
  • Starry night octopus (Callistoctopus luteus | Octopus luteus) foraging for food in Lembeh Strait, Indonesia. These bright-red octopuses are relatively common at night in this area.
    starry-night-octopus-Callistoctopus-...tif
  • Aegires gardineri nudibranch photographed at Sawa Sawa Sawaga in Milne Bay, Papua New Guinea
    Aegires-gardineri-nudibranch-milne-b...tif
  • Beautiful whitish Hypselodoris bullocki nudibranch in a mucky bay at Sanambiet Island off New Ireland in Papua New Guinea
    Hypselodoris-bullocki-nudibranch-lag...tif
  • Dramatic lighting for a nudibranch that is common in the Indo-Pacific region, Chromodoris annae
    Chromodoris-annae_nudibranch-ambon-2..tiff
  • This is a female bivalve of indeterminate species engaged in broadcast spawning. The bivalve is embedded in the coral reef. The orange strands comprise thousands upon thousands of eggs. The fish eating the eggs is a Nagasaki damsel (Pomacentrus nagasakiensis).
    bivalve-broadcast-spawning-eggs-japa...tif
  • Diver with large, healthy Tridacna gigas giant clam at a remote location in Papua New Guinea
    tridacna-gigas-giant-clam-and-diver-...tif
  • This is a female Japanese pygmy squid (Idiosepius paradoxus) during the reproductive season. The white strands are spermatophores that have been passed to her by males. Here she is extending her two tentacles while searching for prey.
    idiosepius-paradoxus-female-with-spe...tif
  • After a female Japanese pygmy squid (Idiosepius paradoxus) deposits eggs on eelgrass as shown here, sand and other debris accumulate and adhere to the eggs quickly. Within a short time, egg clusters become opaque. This may serve to protect the eggs. The eggs pictured here were fresh, deposited less than an hour before. Photographed at two times life-size magnification.
    idiosepius-paradoxus-eggs-japan-2021...tif
  • This is a female East Asian common octopus (Octopus sinensis) protecting a clutch of eggs during the winter, which is not the usual time of year for this species to brood eggs. Reproductive activity is most common during the summer months. This female was eventually successful. Some eggs started to hatch after 62 days, running until 76 days. Hatching during the normal season requires only a few days.
    octopus-sinensis-east-asian-common-o...tif
  • This is an East Asian common octopus (Octopus sinensis), known as madako in Japanese. This one was positioned confidently at the entrance to a hole in the reef.
    octopus-sinensis-east-asian-common-o...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 10 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • Yellow-orange Cadlinella ornatissima nudibranch with characteristic pink-tipped tubercles and white rhinophores
    cadlinella-ornatissima-nudibranch-le...tif
  • Photographer Douglas Seifert demonstrating the stickiness of the suction rings of an Architeuthis giant squid feeding arm. The squid's suction rings are lined with sharp, serrated teeth made of chitin, which help the animals to grasp and cling to prey. In this photograph, the suction rings are clinging to the glass of Douglas's scuba diving mask. I retrieved this 351-centimeter long Architeuthis arm fragment after seeing a sperm whale breach. Photographed in Ogasawara, Japan.
    douglas-seifert-architeuthis-giant-s...tif
  • Measuring part of an Architeuthis giant squid feeding arm that I recovered after seeing a sperm whale (Physeter macrocephalus) breach in the deep waters of the Ogasawara islands in Japan. The squid arm, which was only a portion of the entire feeding tentacle, was 351 centimeters.
    measuring-architeuthis-squid-feeding...tif
  • Veined octopus (Amphioctopus marginatus) looking for food at night in the Lembeh Strait, North Sulawesi, Indonesia.
    coconut-octopus-amphioctopus-margina...tif
  • Mimic octopus (Thaumoctopus mimicus) sitting on dark sand muck in Lembeh Strait, North Sulawesi, Indonesia
    mimic-octopus-thaumoctopus-mimicus-l...tif
  • Glossodoris rufomarginata nudibranch in Ambon, Indonesia
    Glossodoris-rufomarginata-nudibranch...tif
  • Small veined octopus (Amphioctopus marginatus) making itself round, perhaps in an attempt to look as big as possible to discourage close approach
    Ambon-Amphioctopus-marginatus-Veined..tiff
  • This is a sea elephant (Pterotrachea coronata), a predatory pelagic mollusk. This individual was encountered in a shallow bay. It was alive and swimming, but in poor condition. These animals use their extended proboscis to grab prey. Their vital organs are contained in the visceral nucleus at the rear of the body. One of the animal's eye is clearly visible.
    pterotrachea-coronata-sea-elephant-j...tif
  • This is a Pterosoma planum a species of predatory snail that lives in the open oceans of the Indo-Pacific region. The pink proboscis is the animal's mouth, with two eyes also visible. The gastropod's shell seen below the animal in this image.
    pterosoma-planum-pelagic-snail-japan...tif
  • This is a large male broadclub cuttlefish hovering above a coral reef during the reproductive season. Multiple males like this were engaged in competition for females that were ready to mate and deposit eggs.
    sepia-latimanus-broadclub-cuttlefish...tif
  • This is a composite image showing the emergence of a veliger (planktonic larva) of an Oregon hairy triton (Fusitriton oregonensis) from its shell. The mollusk was about 5mm in shell size, suggesting that it was nearly mature. Juveniles settle on the ocean floor after metamorphosis. Juveniles have been found at depths exceeding 2000m, while adults are generally found in waters of 800m or shallower. The larval stage of this species is around 4.5 years.
    fusitriton-oregonensis-veliger-orego...tif
  • This is a veliger (planktonic larva) of an Oregon hairy triton (Fusitriton oregonensis). It was about 5mm in shell size, suggesting that this animal was nearly mature. Juveniles settle on the ocean floor after metamorphosis. Juveniles have been found at depths exceeding 2000m, while adults are generally found in waters of 800m or shallower. The larval stage of this species is around 4.5 years.
    fusitriton-oregonensis-veliger-orego...tif
  • Shown here are bivalve mollusks of indeterminate species engaged in broadcast spawning. A female is sending out orange eggs, while a male above is sending out clouds of sperm.
    bivalve-broadcast-spawning-eggs-sper...tif
  • This is a female Pfeiffer's Top Shell (Tegula pfeifferi) engaged in broadcast spawning. Having positioned herself in an elevated spot and raised herself to vertical orientation, the shell forcefully ejected clusters of green eggs three to four times in a row. She then reloaded and repeated for two additional rounds.
    tegula-pfeifferi-top-shell-broadcast...tif
  • This is a female Sepia latimanus broadclub cuttlefish preparing to deposit eggs into the Acropora coral. Females adopt this characteristic scrunched up face prior to depositing eggs. The male that has just mated with her is standing guard in the background to keep other males away.
    sepia-latimanus-cuttlefish-courtship...tif
  • Shown here is a male Sepia latimanus cuttlefish (right) approaching a female (left) in order to attempt to mate. The male has split his body pattern and coloration into two distinct halves for courtship. The half facing the female is a subdued whitish tone, which presumably communicates calm, soothing intent. The other half is normal pattern, possibly to ward off other males.
    sepia-latimanus-cuttlefish-courtship...tif
  • This is a female Lottia emydia limpet sending a stream of eggs into the water during spawning. These sea snails aggregate in order to spawn en masse. Photographed in Hokkaido, Japan.
    lottia-emydia-limpet-spawning-japan-...tif
  • This is a flamboyant cuttlefish (Metasepia pfefferi) consuming a sandperch (Parapercis sp.) that it had just grabbed.
    metasepia-pfefferi-flamboyant-cuttle...tif
  • This is a flamboyant cuttlefish (Metasepia pfefferi) extending its feeding tentacles to grab a sandperch (Parapercis sp.). The cuttlefish's tentacular clubs are milliseconds from latching on to the fish.
    metasepia-pfefferi-flamboyant-cuttle...tif
  • This is a giant pacific octopus (Enteroctopus dofleini) gliding across the ocean bottom in the northern waters of Japan.
    enteroctopus-dofleini-pacific-giant-...tif
  • This is a giant pacific octopus (Enteroctopus dofleini) foraging for food. The animal has enveloped rocks in order to search holes and crevices for prey.
    enteroctopus-dofleini-pacific-giant-...tif
  • This is a pile of northern Pacific seastars (Asterias amurensis) and blue bat seastars (Patiria pectinifera) that are scavenging a dead giant pacific octopus (Enteroctopus dofleini). It took several days for the entire octopus to be consumed.
    enteroctopus-dofleini-giant-pacific-...tif
  • This is a giant pacific octopus (Enteroctopus dofleini) investigating a pile of northern Pacific seastars (Asterias amurensis) and blue bat seastars (Patiria pectinifera) that are scavenging a dead giant pacific octopus. One arm of the dead octopus is visible. Most of the dead cephalopod had already been consumed. This octopus touched and caressed the remains of the dead octopus for a few minutes, then departed.
    enteroctopus-dofleini-giant-pacific-...tif
  • This is a Pacific deer cowry (Lyncina vitellus) with eggs.
    lyncina-vitellus-with-eggs-pacific-d...tif
  • This is a red-spotted blenny (Blenniella chrysospilos) poking its head out of its home in the coral, with two coral hermit crabs (Paguritta sp.) visible in the background. The blenny's home is the abandoned burrow of a vermetid gastropod, Dendropoma maximum.
    blenniella-chrysospilos-red-spotted-...tif
  • This is a female Japanese pygmy squid (Idiosepius paradoxus) depositing eggs on a blade of eelgrass (Zostera marina). The white mass to the left of the fresh eggs are eggs that were deposited earlier, not necessarily by this female. Fine grains of sand and other debris have covered the older eggs. The females seem to prefer certain blades of eelgrass. It is common to see two or more clutches on a single blade of eelgrass and none on others.
    idiosepius-paradoxus-female-depositi...tif
  • This Idiosepius paradoxus Japanese pygmy squid is consuming a crustacean, perhaps an amphipod of sub-order Hyperiidea. The compound eye of the prey is visible. These small squids immobilize prey with venom, then inject digestive enzymes and consume the liquified contents. They discard the empty exoskeletons when finished.
    idiosepius-paradoxus-eating-hyperiid...tif
  • Male Japanese pygmy squids (Idiosepius paradoxus) like the darker squid on the right side of this image often approach females in the process of depositing eggs to pass on spermatophores. Pictured here is the moment the female has accepted spermatophores from the male. Spermatophores that she has previously received from other males are visible attached to her mantle.
    idiosepius-paradoxus-female-spermato...tif
  • This female Japanese pygmy squid (Idiosepius paradoxus) is preparing to deposit an egg by cleaning the surface of eelgrass (Zostera marina). The curved white strands are spermatophores attached by multiple males. Photographed at two times life-size magnification.
    idiosepius-paradoxus-female-depositi...tif
  • This is a female Japanese pygmy squid (Idiosepius paradoxus) depositing eggs on a blade of eelgrass (Zostera marina). Reproductive season takes place twice a year.. Adults of this species die after reproduction, which means that there are two generations each year. Size descriptions generally suggest maximum size of up to 18mm. The females in this area were considerably larger, in the range of 30mm. Photographed at magnification of two times life-size.
    idiosepius-paradoxus-female-depositi...tif
  • This rose petal bubble shell (Hydatina physis) is gathering and arranging freshly secreted eggs on its mantle, prior to attaching the completed egg mass to the sand with a mucous thread. After this is complete, the gastropod burrows back into substrate and disappears.
    hydatina-physis-with-eggs-rose-petal...tif
  • Octopuses are renowned for their intelligence and curiosity, This East Asian common octopus (Octopus sinensis) snuck up at night to take my dive light. The light was attached to my wrist via a lanyard, so try as it might, the octopus was unable to claim its prize. We engaged in a game of tug-of-war for a few minutes, during which I laughed so hard that I must have wasted a considerable amount of air. The octopus eventually relented, blending in with the substrate and sulking.
    octopus-sinensis-east-asian-common-o...tif
  • This is a juvenile giant Pacific octopus (Enteroctopus dofleini), about 7cm to 8cm in diameter when the octopus was in this position.
    enteroctopus-dofleini-juvenile-giant...tif
  • This is a stubby squid (Rossia pacifica), a relative of bobtail squids. This species is native to the North Pacific, found in a wide range of depths, from 20m to 1300m. This individual was between 10cm and 12cm in total length.
    rossia-pacific-stubby-squid-japan-20...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 14 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 6 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 7 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 4 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • This sequence depicts a veined octopus (Amphioctopus marginatus) using a broken bottle as a portable shelter. The octopus was carrying a small crab that it had caught for a meal. Image 2 in a series of 15.
    amphioctopus-marginatus-bottle-indon...tif
  • Inaba-san holding an edible gastropod she collected in the ocean, with more in the basket below. This Turbo sazae sea snail is a popular food item in Japan. It was misclassified as Turbo cornutus from 1786 until 2017.
    ama-diver-izu-japan-201006-0369.tif
  • An unusual nudibranch (Gymnodoris impudica) with only a single rhinophore in the center of its head, cyclops-style. The centralized position of the lone rhinophore suggests that the nudibranch was likely born this way, though it is impossible to be certain.
    gymnodoris-impudica-nudibranch-singl...tif
  • Mimika bobtail squid (Euprymna morsei)
    mimika-bobtail-squid-euprymna-morsei...tif
  • This is a firefly squid (Watasenia scintillans). This deepwater species ascends to relatively shallow water for reproduction purposes. Sometimes, as is pictured here, individuals appear to become disoriented, repeatedly hitting the substrate for no apparent reason. This species is known for its bioluminescence.
    firefly-squid-watasenia-scintillans-...tif
  • This is a violet snail (Janthina janthina), also known as a bubble raft snail. These pelagic snails are found worldwide in temperate and tropical waters. They are considered pleuston, macroscopic organisms that live at the interface of air and water. To float at the ocean surface, these snails use thin secretions of chitin to envelope bubbles of air, thus creating a buoyancy support. They bob upside-down below the ocean surface and wait for prey such as Portuguese man-of-wars (Physalia sp.) and by-the-wind sailors (Velella velella). When they sense such prey, bubble raft snails extend their long cylindrical snouts and use a rasping mechanism to grab prey, as pictured here. These snails are protandrous sequential hermaphrodites, meaning they all commence life as males, then become female. This snail, with a shell of about three centimeters, was found washed ashore with a mass stranding of thousands of colonial siphonophores.
    janthina-janthina-violet-bubble-raft...tif
  • This is a blue ocean slug (Glaucus atlanticus) that was washed ashore with a mass, multi-day stranding of thousands of blue bottles (Physalia utriculus). These nudibranchs are part of the rarely seen blue community of the open ocean. They prey on other animals in that community, such as Physalia utriculus, by-the-wind-sailors (Velella velella), blue buttons (Porpita porpita), and violet snails (Janthina janthina). Glaucus nudibranchs are immune to the venom of the blue bottles that they consume. They store their prey’s nematocysts and deploy them in specialized cnidosacs at the tips of their ornate cerata. Because these nudibranchs concentrate the venom of their prey, they can produce a more powerful sting than Physalia.
    glaucus-atlanticus-nudibranch-201711...tif
  • Close-up view of strands of multicolored sea hare eggs (Aplysia sp.)
    sea-hare-eggs-high-magnification-jap...tif
  • An adult female sperm whale carrying a large piece of giant squid, which this group of whales had brought up from the deep trench. They were playing with the leftover bits of squid, shredding their meal, perhaps in the process of weaning the juvenile sperm whale pictured swimming alongside the female. I followed this group for several days, and this female was the dominant individual, swimming by and using sonar to check out my boat and people in the water.
    sperm-whales-eating-giant-squid-phys...tif
  • An adult female sperm whale carrying a large piece of giant squid, which this group of whales had brought up from the deep trench. They were playing with the leftover bits of squid, shredding their meal, perhaps in the process of weaning the juvenile sperm whale pictured swimming alongside the female. I followed this group for several days, and this female was the dominant individual, swimming by and using sonar to check out my boat and people in the water.
    sperm-whales-eating-giant-squid-phys...tif
  • Part of a squid dropped by a sperm whale. From the size, shape and shape of the clubs on the feeding tentacles, my guess is that this is the remnants  of a sharpear enope squid (Ancistrocheirus lesueuri), a mesopelagic squid that sperm whales feed upon in the southern hemisphere.
    ancistrocheirus-lesueuri-sharpear-en...tif
  • Two centimeter juvenile flamboyant cuttlefish (Metasepia pfefferi) in Lembeh Strait, Indonesia
    flamboyant-cuttlefish-juvenile-metas...tif
  • Tiny swimming mollusk known as a cigar pteropod (Cuvierina columnella). This swimming mollusk is found throughout temperate and tropical waters around the world. Photographed during a blackwater night dive in Palau.
    cigar-pteropod-cuvierina-columnella-...tif
  • I retrieved this after joining a female sperm whale (Physeter macrocephalus) that had just surfaced from a foraging dive. She had some Architeuthis giant squid arm fragments stuck on her face, and she spat out this piece. When I grabbed this squid arm fragment, it was ice cold.
    ice-cold-architeuthis-giant-squid-ar...tif
  • This is a 351 centimeter segment of an Architeuthis giant squid feeding arm, laid side-by-side with my friend Shiho Kudo for scale. I recovered this squid arm after seeing a sperm whale (Physeter macrocephalus) breach. Photographed in Ogasawara, Bonin Islands, Japan.
    giant-squid-arm-architeuthis-japan-o...tif
  • This is a 351 centimeter segment of an Architeuthis giant squid tentacular feeding arm left in the water by a sperm whale (Physeter macrocephalus) after it breached. The suction cups on the tentacular clubs are lined with sharp, serrated teeth made of chitin. Photographed in Ogasawara, Bonin Islands, Japan.
    architeuthis-giant-squid-feeding-arm...tif
  • A Melibe pilosa nudibranch expanding and extending its semi-transparent oral hood to scoop up rubble and sift through it for food. Lembeh Strait, North Sulawesi, Indonesia.
    Melibe-pilosa-nudibranch-lembeh-stra...tif
  • A small Hypselodoris infucata nudibranch perched on a ledge, looking almost as if it is staring across a gulf at a larger Hypselodoris infucata nudibranch in the background. Both nudibranchs were feeding as they moved along the muck substrate in Lembeh Strait.
    Hypselodoris-infucata-nudibranchs-le...tif
  • Top-down view of a mimic octopus (Thaumoctopus mimicus) traveling across the dark sand muck in Lembeh Strait, North Sulawesi, Indonesia
    mimic-octopus-thaumoctopus-mimicus-l...tif
  • Mimic octopus (Thaumoctopus mimicus) traveling across the dark sand muck in Lembeh Strait, North Sulawesi, Indonesia
    mimic-octopus-thaumoctopus-mimicus-l...tif
  • Super macro photograph of a Chromodoris willani nudibranch in the Lembeh Strait, North Sulawesi, Indonesia
    Chromodoris-willani-nudibranch-super...tif
  • Risbecia tryoni nudibranch in Ambon, Indonesia
    Risbecia-tryoni-nudibranch-ambon-ind...tif
  • Colorful Thorunna florens nudibranch in Ambon, Indonesia
    Thorunna-florens-nudibranch-ambon-in...tif
  • Chromodoris lochi nudibranch in Ambon, Indonesia
    Chromodoris-lochi-nudibranch-ambon-i...tif
  • Flamboyant cuttlefish (Metasepia pfefferi) in Ambon, Indonesia
    Metasepia-pfefferi-flamboyant-cuttle...tif
  • Small octopus sitting on orange sponge, demonstrating its ability to create hair-like projections with its skin. Ambon, Indonesia.
    Octopus-on-orange-sponge-ambon-indon...tif
  • Hypselodoris iacula nudibranch moving along the reef in Ambon, Indonesia
    Hypselodoris-iacula-nudibranch-ambon...tif
  • White and yellow Glossodoris sp. nudibranch laying eggs in Ambon, Indonesia
    Glossodoris-nudibranch-laying-eggs-a...tif
  • Glossodoris atromarginata nudibranch projecting a shadow that looks like a rabbit. Ambon, Indonesia
    Glossodoris-atromarginata-rabbit-sha...tif
  • Yellow and black Thecacera nudibranch in Ambon, Indonesia
    Thecacera-nudibranch-ambon-indonesia...tif
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Tony Wu Underwater Photography

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