A duck-like dinosaur with killer claws ran, swam and tore prey to shreds

It had a graceful, swan-like neck but bizarre "killer claws" that could tear prey to shreds: The fossil of a new, 75-million-year-old species of "duck dinosaur" has been discovered in Mongolia.  The fossil represents a new species of amphibious dinosaur, one that walked on two legs on land like ducks, but also used its flipper-like forelimbs to manœuver in water like penguins. It also relied on its long neck for foraging and ambush hunting.  The scientific name of the creature is Halszkaraptor escuillie.