Doctor Knowles and Professor McCork get to the bottom of some of life's massive science questions. Here, the duo ask why the dinosaurs became extinct. Show more
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Doctor Knowles and Professor McCork get to the bottom of some of life's massive science questions. Here, the duo ask why the dinosaurs became extinct. Show more
CBBC is the BBC's multiplatform offering for 6-12 year olds bringing the very best drama, entertainment and factual programmes to its young viewers.
