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Oh, I am aware of systemic colony collapse of some species of bees, for example.

But this is bad. I didn't realize it was this extensive.

Of course, my question would be, how do they know - but that is a different topic.

How do they know? Scientist and friends of little creatures go into the fields and count them. Have you heard about Dave Goulson, a Britsh biologist and one of the leading experts in his field? He has done a lot of research and published books, like "A Sting in the Tale" where he talks in layman's term and entertaining about this problem.

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