Life & Evolution

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Leonardo the duck-billed dino

MORE THAN BONES  A 77-million-year-old duck-billed dinosaur nicknamed Leonardo may have been infected with parasitic worms.

Shark snout

IT’S ELECTRIC  A shark’s snout contains tiny pores, known as ampullae of Lorenzini, which can sense weak electric fields from prey. New research indicates that a jelly inside the pores is a highly efficient proton conductor.

<em>Machairoceratops cronusi</em> and <em>Spiclypeus shipporum</em>

DOUBLE TROUBLE  Researchers have discovered two new species of dinosaurs with unusual horns. 

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