Hasta La Motion!

Fire ants use their bodies to construct Eiffel Tower-looking structures when they run into a tall obstruction while looking for food or escaping to new areas. A new study from the Georgia Institute of Technology suggests that they build these structures without a leader or coordinated effort. Each ant wanders around aimlessly, adhering to a certain set of rules, until it unknowingly participates in the construction of a tower several inches tall.

For more: http://www.news.gatech.edu/features/sinking-ant-towers