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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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Charles Darwin's first diagram of an evolutionary tree appears in his First Notebook on Transmutation of Species (1837).
Photo

Darwin’s Evolutionary Tree Diagram

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Photograph of the underside of a gelatinous octopus with a bright yellow bioluminescent ring around her mouth.
Slideshow

Bioluminescent Animals Photo Gallery

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

Menopausal Moms: A Mammal Mystery

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An Illustration of small tentacled fossils.
Photo

Ancient Entoproct Community

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Photograph of a transparent polka-dotted squid in the dark ocean.
Photo

Cockatoo Squid

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Illustration of a four-legged proto-whale with webbed feet.
Photo

Early Whale with Webbed Feet

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A close up profile of an adult anglerfish female from the Linophryne family collected in the northern region of the Gulf of Mexico. © 2016 DEEPEND/ Dante Fenolio
Article

Meet the Tiny Bacteria That Give Anglerfishes Their Spooky Glow

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

Shark Teeth Tell Great White Shark Evolution Story

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Riftia tubeworm (Riftia pachyptila) colonies near hot spring.
Article

The Microbes That Keep Hydrothermal Vents Pumping

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