Picket fence....

[Condor]

...Cocoon.. Mysterious cocoon found in the Amazon and so far no one knows what makes these.......Seems the fence is to protect the cocoon from Ants and other insects..

http://i493.photobucket.com/albums/rr298/bolivia_04/Amusing%20Planet%20Pics/picket-fence-cocoon-13_zps75054ed7.jpg (http://s493.photobucket.com/user/bolivia_04/media/Amusing%20Planet%20Pics/picket-fence-cocoon-13_zps75054ed7.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Amusing%20Planet%20Pics/picket-fence-cocoon-23_zps3bc6292b.jpg (http://s493.photobucket.com/user/bolivia_04/media/Amusing%20Planet%20Pics/picket-fence-cocoon-23_zps3bc6292b.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Amusing%20Planet%20Pics/picket-fence-cocoon-43_zpsc09cc70e.jpg (http://s493.photobucket.com/user/bolivia_04/media/Amusing%20Planet%20Pics/picket-fence-cocoon-43_zpsc09cc70e.jpg.html)

[Nostradamus]

wonder why some genius hasn't set up a camera to record what comes out of the thing