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(Mother Nature Network)   Over the decades people have wondered if Native Americans, aliens, earthquakes or floods created the 8-foot tall, 30-foot wide Mima mounds that cover Washington's prairie land. Turns out, it was just gophers   (mnn.com) divider line 4
    More: Interesting, Mima mounds, floods, earthquakes  
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7196 clicks; posted to Main » on 06 Dec 2013 at 12:41 PM (42 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

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2013-12-06 11:30:52 AM
3 votes:
2013-12-06 04:17:12 PM
1 votes:

George Babbitt: vudukungfu: George Babbitt: insects don't have lungs


Insect don't have lungs

http://listverse.com/2013/01/14/10-prehistoric-bugs-that-could-serio us ly-mess-you-up/ 

more oxygen in the atmosphere equaled farking bigger bugs
2013-12-06 01:30:36 PM
1 votes:

vudukungfu: George Babbitt: insects don't have lungs


Insects don't have lungs.

They have spicules that lead into internal body cavities, but they don't have the huge surface area provided by all the alveoli.  One of the size-limiting features of insects.
2013-12-06 12:54:51 PM
1 votes:

p0nk: "What's really cool about this is scaled by body size, these are the largest structures built by any mammal not including humans,"

Other structures built by non-human mammals such as?

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