Скачать или смотреть Ants Circle

This video was captured in Guatemala, back in 2007, where I was staying with friends for a youth camp at a small resort. The ants circle took place outside the eatery, after breakfast. The phenomenon only lasted a few minutes; when I returned, about an hour later, most of the ants had already found their way into the nearby plants.

What's going on?
Each ant follows the pheromone trail of the ant in front of it, the trails have gotten looped around and now every ant is endlessly following its neighbor. More information on the 27/09/12 update.

Update 31/10/14 & 30/03/14
Updated the description of the video.

Update 11/05/12:
Featured on BBC's programme: Nature’s Weirdest Events.

Update 27/09/12
Featured on Discovery News.
Sandord Porter, a research entomologist at USDA, explains what's going on. Link:    • Видео  

Update 04/03/09
An Ugly Overload reader pointed out it may be an instance of circular milling. Link: http://uglyoverload.blogspot.com/2009...