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Flattened against a leaf, a tree frog blends right in with the mangroves.
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Tree Frog

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A light brown gecko with medium brown markings, standing on a dead and weathered tree trunk.
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Island Leaf-Toed Gecko

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Arching mangrove roots help keep trunks upright in soft sediments at water’s edge.
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Mangrove Support System

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An Arctic cod rests in an ice-covered space.
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Arctic Cod Beneath the Ice

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Branching coral in naturally acidic water.
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Fragile Branching Corals in Acidic Water

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A variety of organisms make their home on this tropical coral reef in Indonesia.
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Indonesian Coral Reef

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An arrow-worm from the genus Spadella. Alvariño discovered and classified the species Spadella gaetanoi in 1978.
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Ángeles Alvariño: Woman of Many Namesakes

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Colorful corals are disappearing in the Great Barrier Reef.
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The Great Barrier Reef – Going, Going, Gone???

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The tapetail is the larva of the family. It transforms into either a male (bignose) or female whalefish.
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Meet the Whalefish Family

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Photo Spread showing male fish with mouth full of eggs from Citizens of the Sea
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Devoted Dads: Photo Spread from Citizens of the Sea

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Photo Spread showing a shrimp cleaning a fishes mouth from Citizens of the Sea
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Open Wide: Photo Spread from Citizens of the Sea

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