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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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Smithsonian Scientists Describe a 'New' Fossil Whale

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two humpback whales swim underwater
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Whales and Dolphins

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a man sits pondering with a tan ball cap on
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A Captain’s Journey to the Antarctic

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Two Adélie penguins on Paulet Island, Antarctica
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Penguins

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Fossil mosasaur skull and partial skeleton sitting in what looks like the dirt it was excavated from.
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Fossil Mosasaur Skull

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two plesiosaurs hunt
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Plesiosaur on the Hunt

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Screenshot of Nancy Knowlton speaking at "Lecture: One Year After the Gulf Oil Spill"
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Lecture: One Year After the Gulf Oil Spill

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Bathochordaeus stygius are filter feeders closely related to sea squirts in the phylum Chordata, the same phylum to which humans belong.
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Mucus Home

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Researchers can study ocean acidification in the lab by rearing organisms (here, Lophelia deep-sea corals) in seawater with variable pH and measuring if they grow, eat, breathe, reproduce, or develop differently.
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Studying Acidification in the Lab

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Despite its demonic look, the vampire squid collects and eats drifting particles called "marine snow" using two long, sticky filaments.
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The Vampire Squid from Hell

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A translucent, female hyperiid surrounded by white young in a barrel-shaped body cavity.
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Phronima Female and Young

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A close-up of tiny teeth on the common whelk's radula.
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A Snail's Rainbow Radula

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