Why Aren't There Giant Insects?

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Hank and physiologist Jon Harrison discuss the question of insect size and major theories that attempt to explain why there is a limit to how large insects can get with current conditions on Earth. Like SciShow @ http://www.facebook.com/scishow Follow SciShow @ http://www.twitter.com/scishow #SciShow #bugs References http://www.prehistoric-wildlife.com/species/m/meganeura.html http://www.telegraph.co.uk/earth/wildlife/8930070/Worlds-biggest-insect-...

Published 2012-10-09 · Watch on YouTube ↗
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