Cameramen are among the most extraordinarily able and competent people I know. They have to have an insight into natural history that gives them a sixth sense of what the creature is going to do so they can be ready to follow.
You can only get really unpopular decisions through if the electorate is convinced of the value of the environment. That's what natural history programmes should be for.
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The process of making natural history films is to try to prevent the animal knowing you are there so you get glimpses of a non-human world and that is a transporting thing.
