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An ancient whale ancestor
Video

Evolution of Whales Animation

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A 3-D reconstruction of the skull of a fin whale fetus.
Article

Keeping An Ear Out For Whale Evolution

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A close-up image of a fossil shark jaw with teeth.
Article

Shark Teeth Tell Great White Shark Evolution Story

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An adult and juvenile killer whale frolic in the water.
Article

Menopausal Moms: A Mammal Mystery

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The Galapagos Islands site in Ecuador was inscribed on the World Heritage List in 1978. Located in the equatorial Pacific Ocean nearly 1000 km from South America, the Galapagos Islands and the surrounding marine reserve are a unique "living museum and show
Photo

Sally Lightfood Crab, Galápagos Islands, Ecuador

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Kelps are large, brown algae that grow along coasts around the world, especially in cooler regions.
Article

With Every Breath You Take, Thank the Ocean

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the skull of a mosasaur
Article

Meals of the Mighty Mosasaur

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A narwhal breaches the surface, its tusk pointed to the sky
Article

Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

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The Belize Barrier Reef Reserve System consists of the largest barrier reef in the northern hemisphere, offshore atolls, and several hundred sand cays, mangrove forests, coastal lagoons, and estuaries. The system's seven sites illustrate the evolutionary h
Article

Charles Darwin's Ocean Upwelling

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This family tree shows how the ancestors of whales moved gradually from land to sea.
Photo

The Whale Family Tree

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Nick Pyenson points to a skull and skeleton of a fossil whale.
Article

Excavating a "toothed" baleen whale from Vancouver Island

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Vertebrates evolved in the sea and eventually moved onto land. The ancestors of whales later returned to the sea.
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Whales Returned to the Sea

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