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Building A Natural Air conditioning System Is No Big Deal, God Knows That I Can Also Build One. But The Big Deal Is When A Bunch Of Rodents Also Understand The Concept Of Air conditioning. What Should I Make Of This?

BBC – Earth – Prairie dogs build air-conditioned homes

http://www.bbc.com/earth/story/20170320-prairie-dogs-build-air-conditioned-homes

The design stops stale air building up in their burrows