Watch | Gigantic dinosaur skeleton replica

A huge 122ft (37metres) model of a dinosaur skeleton belonging to a group known as titanosaurs was unveiled at the Museum of Natural History in New York. It is too long to fit in the fossil hall and its neck and head poke out toward the elevator banks, offering a surprise greeting when the lift doors open. Paleontologists estimate that titanosaurs weighed about seventy tons which is about as much as ten African elephants.