psyching yourself up for it. to suddenly hear that you aren't going to need it, isjust unbelievable. going to need it, is 'ust unbelievable. ., ., _ unbelievable. chemotherapy still has a — unbelievable. chemotherapy still has a vital _ unbelievable. chemotherapy still has a vital role - unbelievable. chemotherapy still has a vital role in i still has a vital role in treating cancer, but blood trees tiles are successful, it will mean a brighter future for thousands of patients every year. as well as saving the nhs money. fergus walsh, bbc news. one of the biggest creatures ever to walk the earth, a patagotitan dinosaur, is about to go on show at the natural history museum in london. the new display is a cast of the bones discovered in 2014 in argentina. our science editor rebecca morelle is at the museum for us now. piece by piece, bone by colossal bone. a creature from 100 million years ago begins to emerge. this is patagotitan, one of the largest dinosaurs ever to walk the earth.