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A shark tooth embedded in a bone
Article

What the Megalodon Left Behind

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Photograph of the model of a Giant Megatooth Shark, taken from the front..
Slideshow

Shark Ancestors

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Fossil tooth whorl of ancient shark.
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Fossil tooth spiral

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Madison Stewart, known to many simply as “shark girl,” is an inspiring young woman with a passion to protect the creatures most people fear: sharks. She’s been diving with sharks since the age of twelve. Here she is feeding a group of Caribbean reef
Article

Shark Girl: Changing Shark Fear to Fascination

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Large numbers of grey reef sharks were observed at Jarvis Island, an uninhabited Pacific island, during the 2010 Pacific RAMP expedition of the NOAA Ship Hi'ialakai.
Article

Reef Sharks Repelled by People

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Shark Sizes: Whale Shark 46 feet, Basking Shark 33 feet, Great White Shark 23 feet, Megamouth Shark 15 feet, Nurse Shark 13 feet, Mako Shark 8 feet, Blacktip Reef Shark 6.5 feet, Bonnethead Shark 3.4 feet, Dwaf Lantern Shark 6 inches
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What is the Biggest Shark? A Chart Shows the Diversity of Shark Sizes

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Great White Shark at sea surface – marvels of evolution.
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Great White Shark at Surface

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A blue shark, with a copepod attached to its dorsal fin, coasts through waters near New England.
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Blue Shark

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A scalloped hammerhead (Sphyrna lewini) at Isla del Coco, Costa Rica.
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Scalloped Hammerhead Shark

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Hawaiian monk seals are among the wildlife found within the Papahānaumokuākea World Heritage Site.
Slideshow

Backbone of Biodiversity at Risk

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An aerial view of the rocky islands that make up the Gulf of the Farallones.
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Aerial photo of Farallones

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Dead sharks caught in fish net.
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Sharks caught in nets

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