Yet dinosaur bones at the Natural History Museum may have met their match in the form of careless visitors, clumsy cleaners and even a film crew.
The bones are listed among exhibits damaged in day-to-day accidents at the world-famous museum.
Those that needed repairs included a massospondylus, an early plant-eater that roamed the planet about 200 million years ago, a camarasaurus, another giant herbivore dating back to 155 million years and a moeritherium, a prehistoric relative of elephants that lived 37 million years ago.