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Reason Behind Small Sized Insects

300 million years ago the insects were quite different. The reason behind the small sized insects of these days is discussed here.

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Channels: Ecology

Tags: Why Aren't There Giant Insects

Uploaded by: ( Send Message ) on 08-02-2013. Dnatube suggest users to have interest in drug testing, mesothelioma, insurance, medical lawyers.

Duration: 3m 49s

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