deinocheirus

In 1965, a pair of arms as long as a full-grown ostrich's height were discovered in Mongolia. For more than 40 years, the rest of the animal remained a mystery.

Despite being one of the most forbidding places on Earth, the area now occupied by the Gobi Desert was once host to a dizzying array of plants and animals. Some of the most unexpected dinosaurs have been found locked in the red rocks of this arid corner of Mongolia.