wouldn't like to say he is a trophy hunter >>> here at the museum we are used to seeing things like dinosau dinosaurs, but now private collectors are spending a lot of money to have them in their home. what do you think about that? >> that is a cost to science >>> this is the curator here and he discovered this guy, thomas the t-rex museum? >> yes. i think a dinosaur, especially one that is rare, should belong in a museum >>> the bad lands of montana, is where the dinosaur was discovered. digs like this happen every summer. what they find ends up in their collection. this is what field work looks like >> >> you can see the woken here into green >>> museums and scientists are not the only ones who organise excavations. the man in charge of this one is raymond. what can you tell me about raymond, the dinosaur hunter. >> he is a qualified geologyist who has been obsessed with fossils. he knows the subject inside out >>> this is the great debate, are science. >> collectors are after the fossil and not much after the context in which the fossil is found. it's really the context that gives you a