Scientists solve mystery of the humpback dinosaur with a duck beak

A team of scientists have pieced togather the remains of a bizarre-looking dinosaur that combines the features of an ostrich, camel and a duck.

They were able to flesh out the creature's appearance following the discovery of a pair of new skeletons unearthed in Mongolia.

Almost 50 years ago, two of its giant arms were discovered, but the full details of its appearance have remained a mystery.

The dinosaur could have grown to 11 metres (36 feet) in length and weighed more than six tonnes.

It also had a number of unique features not seen in other dinosaurs - including an elongated, duck-like snout and a humped back.

Deinocheirus mirificus was the largest member of the ornithomimosaurs, a dinosaur family bearing a resemblance to modern ostriches.

It may have used its duck-like "bill" to forage for food at the bottom of streams in the river systems where it lived.

Scientists believe it was an omnivore, eating both plants and animal prey.

A description of the dinosaur from an international team led by Dr Yuong-Nam Lee, from the Korea Institute of Geoscience, appears in the journal Nature.