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A Galapagos tortoise munches on some greens.
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Galapagos Tortoise

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When it comes to many of our once-favorite seafoods, there aren't always plenty more fish in the sea. In fact, some studies estimate that up to 90 percent of large predatory fish have disappeared since humans began heavy fishing.
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Be a Picky Eater

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In this photo of a shallow coral reef in the Pacific there are three species of forams. Their colors come from the symbiotic algae that live inside the foram shells.
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Shallow Coral Reef Foraminifers

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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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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 view of the Deepwater Horizon oil spill as seen from a NOAA research aircraft, June 2010.
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The Oil Spill From Above

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A bull shark's ability to prey on many different species is helped by its capacity to survive in both freshwater and saltwater.
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Swinging for Bull Sharks

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A puffin with a mouthful of fish.
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Puffin with a Mouthful of Fish

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Hawaiian monk seal comes ashore
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Red Listed: Study Finds One-Fifth of World's Vertebrates Are at Risk

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Nine small invertebrates held on two fingers.
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A Handful of Biodiversity

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Relatively slow moving, juvenile plane-head filefish Monacanthus hispidus (Monacanthidae) travel along with the algae. They pick off and eat small animals as they move around in the rotating sargassum ball. Adult filefish only grow to be about 11
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Juvenile plane-head filefish

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