An investigation into the theory that a comet was responsible for dinosaur extinction, followed by a look at the role of asteroid collisions in evolution. Show more
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An investigation into the theory that a comet was responsible for dinosaur extinction, followed by a look at the role of asteroid collisions in evolution. Show more
BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.
