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Green turtles (Chelonia mydas) live in the warm coastal waters of tropical and subtropical oceans. Adults sometimes eat sponges, salps (floating jelly-like animals), and jellyfish, but they feed mostly on plants, like seagrass and algae. The pigment f
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Green Turtle

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Colorful crustaceans from the Caribbean island of Guadeloupe.
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Colorful Caribbean Crustaceans

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Using dynamite to stun or kill bigger fish to sell at market leaves behind many dead undesired fish as bycatch.
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Fishing with Dynamite

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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
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Polar Bear Mother and Cub

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A brittled star clings to damaged deep-sea corals in the Gulf of Mexico
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Brittle Star Clings to Damaged Deep-sea Corals

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X-ray image of a longnose butterflyfish
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X-Ray Image of a Longnose Butterflyfish

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X-ray image of a slender snipe eel
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X-Ray Image of a Slender Snipe Eel

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dugong feeds on seagrass in the Red Sea
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Dugong Feeding

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Jorge Velez-Juarbe, predoctoral fellow in the Department of Paleobiology at the Smithsonian's National Museum of Natural History
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Jorge Velez-Juarbe

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A yellow moray eel inside of a sea sponge in the waters off of Poor Knights Islands, New Zealand
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Moray Waits for a Meal

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A photo of a sea walnut, a ctenophore.
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Sea Walnut (Mnemiopsis leidyi)

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A rendering of an ocean scene as it may have looked 65 million years ago, when an astroid fell to Earth and triggered a mass extinction event.
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Cretaceous-Paleogene Boundary (65 Million Years Ago)

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