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Broad-leaf seagrass (Posidonia australis) with algae epiphytes grows at Corner Inlet Marine National Park in Australia.
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Seagrass with Epiphytes

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Seagrasses don't just provide shelter for free-swimming animals, but also are a habitat for non-moving organisms, such as these sea anemones.
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Anemone on Seagrass Blade

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An Australian Giant Cuttlefish (Sepia apama) crosses a seagrass bed.
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Cuttlefish in Seagrass Bed

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This microscopic acantharian is a unicellular amoeba found in the open ocean.
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Marine Microbe from the Open Ocean

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The study area for the Gulf of Maine Area project, part of the Census of Marine Life.
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Census of Marine Life Gulf of Maine Area Project Study Area

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A transparent ctenophore with two long tentacles.
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Arctic Ctenophore with Long Tentacles

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Throughout their lifecycle, jellyfish take on two different body forms: medusa and polyps. Polyps can reproduce asexually by budding, while medusae spawn eggs and sperm to reproduce sexually.
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Jellyfish Lifecycle and Reproduction

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“Once in a while, manta rays appear in great numbers in a small bay in the Baa Atoll. The concentration of plankton must be very high in this particular bay, because up to 200 manta rays have been seen here at one time. It can be difficult to capture a n
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Manta Rays, Baa Atoll, Hanifaru Bay, Maldives

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“It was shaping up to be a bad night dive when my mask broke and I was forced to come up early. The others continued diving and I was becoming a bit bored at the surface when I suddenly spotted some grey reef sharks hunting in the light of our ship. I to
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Grey Reef Shark, West New Britain, Father Reefs, Papua New Guinea

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“It’s quite normal for this type of goby to sit still on hard coral like this. I spotted the first of these very small fish and set up my camera for the shot. Just as I was about to take a picture, a second goby came out of nowhere and sat on the first
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Gobies on Coral, Near Marsa Alam, Egypt

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“Tomales Bay is a narrow, protected waterway along the San Andreas fault. In years past, it was known for its thriving fishing industry. This boat is a relic from better times for local fishermen, and few of its kind can still be found today. The ridgeli
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Fishing Boat, Point Reyes National Seashore, California, USA

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A gang of king penguins.
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King Penguins, Right Whale Beach, South Georgia Island, Southern Ocean

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