An octopus in a shallow rocky marine environment, stretching an arm towards a shell on the sandy bottom.

An octopus in a shallow rocky marine environment, stretching an arm towards a shell on the sandy bottom.

An octopus in a shallow rocky marine environment, stretching an arm towards a shell on the sandy bottom. Mostra altro

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A giant Pacific octopus clings to a dark, rocky underwater cave wall, surrounded by bull kelp in dim emerald green water.

A giant cuttlefish with vibrant purple and cream zebra-striped patterns displays its arms above a rocky, seaweed-covered reef in sunlit green ocean water.

A wide-angle underwater view of a coral reef drop-off wall featuring large barrel sponges and purple tube sponges, with the sunlit surface visible far above in the deep blue water.

A tide pool on a rocky shore features purple ochre sea stars and green sea anemones submerged in clear water, surrounded by pink coralline algae on the stone under soft, overcast lighting.

A broadclub cuttlefish with a mottled brown and white mantle and aqua-tinted fin edges hovers above a dense thicket of staghorn coral in shallow, sunlit water.

A blue lobster with mottled cobalt and cerulean coloring rests on a rocky seabed, illuminated by a shaft of sunlight filtering through the water.

Sunlight creates caustic patterns on submerged green and grey pebbles in a river, with air bubbles clinging to the stones and a clear, emerald-toned open space to the right.

A leafy seadragon with golden, leaf-like appendages drifts through dark blue-green water among kelp, illuminated by a shaft of sunlight from the surface.

A cuttlefish swims in dark water next to a billowing cloud of brown ink, illuminated by a single beam of blue light from above.

A purple ochre sea star rests on a rocky edge beside several giant green anemones submerged in a clear tide pool at dawn.

An orange octopus with curled tentacles peeks out from a dark rocky sea cave, surrounded by a small crab, various seashells, coral, and kelp on the sandy ocean floor.

A young loggerhead turtle swims beneath a floating raft of golden sargassum seaweed in the ocean at sunrise, captured in a split-level shot showing the surface and the depths.

A seal swims through a kelp forest with sunbeams filtering through the water, creating a trail of bubbles as it turns toward the camera.

A leafy seadragon swims near kelp and the wooden pilings of a jetty, with lights glowing in the background under a dusk sky.

Sunlight filters through the water in a kelp forest, illuminating kelp bass swimming among rocky terrain and tall kelp stalks.

A green sea turtle rests on a coral reef at Apo Island, surrounded by a shoal of orange anthias fish under sunlight filtering through the water.

A blanket octopus swims through dark water with its long, iridescent, violet and gold web trailing behind it, illuminated by a single light source from above.

A sequence of frog development, from eggs to a fully formed frog, rests on a sunken branch in a sunlit, clear underwater pond environment.

A bottlenose dolphin swims through a dense kelp forest with sunlight filtering through the water in beams.

A dark red octopus rests on a rocky, textured seabed with its web flared, illuminated by ambient blue-green light filtering from above.

An octopus camouflaged against a large brain coral formation underwater, with sunbeams filtering through the clear water from the surface.

A close-up macro photograph of a cuttlefish eye with a W-shaped pupil and a gold iris, surrounded by mottled brown skin, illuminated by a shaft of sunlight underwater.

A blue-ringed octopus with vibrant blue rings on its yellow skin crawls across a bed of coral rubble underwater.

A vibrant coral reef wall teeming with barrel sponges, rope corals, and small fish, illuminated by sunlight filtering through the water from the left side.

A puffadder shyshark curled on a rock within a kelp forest, with sunlight filtering through the water in shafts above.

A Caribbean spiny lobster stands on a sandy seafloor at night, illuminated by a torch from the left, with its antennae extended beneath a silhouette of elkhorn coral.

A sunflower sea star with numerous orange and violet arms rests on a rocky seabed in a kelp forest, illuminated by shafts of green sunlight filtering through the water.

A small coconut octopus peeks out from between two halves of a clam shell resting on dark volcanic sand, illuminated by a light source from the left.

A tiny cuttlefish hatchling with a speckled mantle and W-shaped pupils rests on a blade of seagrass next to a cluster of black eggs, illuminated by warm evening light in green underwater surroundings.

A bat ray glides through a sandy clearing in a giant kelp forest, illuminated by shafts of morning sunlight filtering through the green water.

A grey seal swims through a dense kelp forest underwater, illuminated by shafts of sunlight filtering from the surface.

A leafy seadragon swims in the water beneath a jetty, with sunlight filtering down through the pilings to illuminate its golden, leaf-like appendages against a background of kelp and shadows.

A vibrant coral reef wall drops into the deep blue ocean, illuminated by bright sunlight filtering through the water surface.

A lion's mane jellyfish with an amber bell and long trailing tentacles swims in dark green water beneath a layer of sea ice.

A green snakelocks anemone with violet-tipped tentacles sits in a shallow, clear rock pool on pink coralline-covered rock, illuminated by dappled sunlight.

An underwater view of a dense kelp forest with sunlight filtering through the canopy in rays, illuminating suspended particles in the green water.

An underwater view of a shallow reef with brain corals and a school of striped sergeant fish, looking up at a rain-pocked surface in soft grey-green light.

A giant Pacific octopus rests on a cluster of white plumose anemones in dark underwater conditions, illuminated by a diver's lamp from the left.

A close-up view of a giant Pacific octopus with its textured red-brown mantle and suckers pressed against the glass of an aquarium tank.

A close-up of an octopus resting on a wet, textured rock at the water's edge, displaying intricate skin patterns and a detailed eye.

A draughtsboard shark rests among kelp holdfasts on the seafloor, illuminated by a diver's torch from the right side in dark water.

A mottled brown moray eel with its mouth slightly open peeks out from a dark, textured basalt rock crevice underwater, illuminated by side lighting.

A horn shark rests on a rocky reef surrounded by kelp forest with sunlight filtering through the water.

A seahorse clings to a textured, colorful pier piling covered in sponges and marine growth, illuminated by shafts of light filtering through the water.

A pig-nosed turtle swims through clear, shallow water over a sandy riverbed, with sunlight creating dappled patterns on its shell and the bottom.

A translucent Dumbo octopus with ear-like fins swims through the dark blue water of the deep ocean.

An alligator snapping turtle rests on the sandy bottom of a clear river, illuminated by sunbeams filtering through the water with aquatic vegetation in the background.

A basket star with its branched arms extended sits on a coral reef, illuminated by a single beam of light against a dark underwater background.

An octopus rises through deep blue water into a shaft of sunlight, with one tentacle uncurling and its suckers illuminated by the light.

A queen conch with a pink-lipped, algae-covered shell moves across a turtle-grass meadow on a sandy seabed, illuminated by low-angle sunlight.

A marine iguana grazes on green algae on a dark lava rock underwater, with sunlight filtering from above and creating a rim light effect on its scales.

A small bobtail squid with iridescent green and gold skin hovers above dark volcanic sand in deep water, illuminated by a single overhead light source.

A small sea turtle hatchling rests within a dense patch of golden sargassum seaweed at the ocean surface, captured in a split-level shot showing the dawn sky above and the deep blue water below.

A sea turtle swims over a vibrant coral reef in clear, sunlit turquoise water.

A scuba diver with salt-and-pepper hair and a beard inspects an ancient clay amphora on a sandy seabed littered with numerous similar artifacts near submerged ruins.

A caddisfly larva, protected by a cylindrical case constructed from small pebbles and sand, rests on a submerged rock in a clear, shallow riverbed illuminated by dappled sunlight.

A giant Pacific octopus rests in a shallow tide pool at Botanical Beach, its reddish arms spread over pink coralline algae under soft, overcast light.

A close-up macro shot of a day octopus eye with a horizontal pupil and gold iris, surrounded by textured, mottled skin, set against a blurred reef background with aqua and gold tones.

A pyjama shark with distinct dark stripes rests in a rocky crevice surrounded by sea urchins and kelp in an underwater reef setting with soft green light filtering from above.

A cuttlefish hovers above a sandy seafloor, illuminated by sunlight filtering through the water to create caustic patterns on the sand.

A close-up macro shot of a cuttlefish eye featuring a distinct W-shaped pupil, surrounded by textured, iridescent skin with metallic silver and violet hues.

A wolf eel with a textured grey face peers from a rocky crevice surrounded by white plumose anemones in deep green underwater lighting.

A translucent glass octopus floats in the dark deep sea, illuminated by a single light source that highlights its internal organs and delicate arms.

A green moray eel with its mouth open rests in a dark coral crevice on a reef, illuminated by a beam of sunlight, with a small cleaner shrimp perched on its lower jaw.

A flamboyant cuttlefish with vibrant magenta and yellow patterns on its mantle moves across dark volcanic sand on the seafloor in shallow, clear water.

Several red cushion sea stars rest on the pale sandy seabed in clear, shallow water near mangrove roots, with sunlight creating rippling patterns on the seafloor.

A Port Jackson shark rests on a colorful sponge garden on the seafloor, illuminated by soft sunlight filtering through clear green-blue water.

Sunlight filters through the surface of the water into a kelp forest in False Bay, illuminating the tall stalks, fish, and rocky seafloor covered in sea urchins and a starfish.

A leafy seadragon with intricate leaf-like appendages swims over seagrass beneath a jetty, illuminated by sunbeams filtering through the blue-green water.

A small blenny with frilled brows peeks out from a hole in a textured brain coral, illuminated by sunlight filtering through clear blue water.

A green sea turtle swims over a vibrant coral reef under bright, dappled sunlight filtering through clear blue water.

Rusticles and soft corals hang from the rusted steel structure of a shipwreck underwater, illuminated by a shaft of sunlight from the surface.