Deinoche irus

'Deinocheirus was a giant ornithomimosaur that lived in Asia during the Late Cretaceous Period (about 70 million years ago). Discovered in 1965, its massive arm bone (2.4 meters) was a mystery for 50 years, but its identity was revealed in 2014 when a complete skeleton was found. It has a distinctive appearance with a sail on its back and a broad, duck-like beak.