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Sea lamprey have beautiful antibodies! And they might unlock new ways to block HIV. http://t.co/SzZ7BcN9Ca

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Utahraptor ponders the meaning of existence at the edge of North America's great inland Cretaceous sea.

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Sketches-meeting in Greece celebrating 500th anniv. of Andreas Vesalius, father of modern anatomy.

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The Beaufort Scale http://t.co/746XshNQLL … , the original is on a re-useable coffee cup in Charleston, SC

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The media outlets that ran my Aquilops art cropped it way down. Here is the full illustration.

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Tweet Storm: skeleton and viscera of a chicken

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Advertising art and illustration from Yoga Anatomy. www.medicalartstudio,com

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Some biomedical illustrations from my first website ... launched in 1998.

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A handful of maniraptorans: Hesperornis, Mei, and Yandangornis for

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On a bird kick for the Tweet Storm! Here's the nocturnal and ground-dwelling kakapo from New Zealand.

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watercolor and gouache illustration completed for the new Shanghai Natural History Museum

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Tweet Storm: Rhinoplasty, facial reconstruction, detail from operation procedure

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Velociraptor pursuing early mammal. Again, carnivores often seek small prey. Leave those Protoceratops alone!

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Tweet Storm: skeleton and viscera of a pork

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Today's The dinosauriform, Silesaurus, and archosauriforms, Vancleavea and Archosaurus

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