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Nick Pyenson points to a skull and skeleton of a fossil whale.
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An Ancient Whale Skeleton, Unexcavated

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dugong feeds on seagrass in the Red Sea
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Dugong Feeding

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A hippopotamus-like creature swims underwater
Article

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

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Smithsonian scientists race the tide the excavate an ancient whale fossil entombed in rock
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Racing the Tide

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Scientists remove remove the whale fossil plaster jacket from the r
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Excavating the Fossil

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a squalodontid skull is dislodged after a plaster jacket is applied
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Dislodging the Fossil

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Smithsonian scientists apply a plaster bandage cap to a block of rock containing fossils
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Securing the Fossil

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Smithsonian researchers with fossil whale skulls from the group Monodontidae
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Smithsonian Scientists Describe a New Fossil Whale

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An illustration of a recently discovered species of Monodontid, Bohaskaia monodontoides, and its beluga and narwhale relatives
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Illustration of a New Fossil Whale, Bohaskaia monodontoides

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Smithsonian Scientists Dig a Trench Around a squalodontid Skull
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Digging a Trench

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

Shark Ancestors

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A rendering of an underwater marine scene from the Cambrian Period, featuring an arthropod, annelids, and other animals.
Slideshow

A Collection of Cambrian Fossils

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