Big Dino

In an undated photo provided by Professor Rodolfo Coria, a dog sits by a replica of the head of a Mapusaurus roseae at the Carmen Funes Museum in Plaza Huincul, Argentina. The dinosaur was discovered in the Patagonia region of Argentina and appears to be one of the biggest meat-eating dinosaurs known. (AP Photo/HO/Prof. Rodolfo Coria)