BBC News is reporting that researchers at the University of Bristol have discovered Panamanian army ants using their own bodies to plug holes in the route from a food source to the nest.
Dr Scott Powell:
When the ants bump into a hole they cannot cross, they edge their way around it and then spread their legs and wobble back and forth to check their fit. If they are too big, then they carry on and another ant will come along and measure itself in the same way. This carries on until an appropriately sized ant plugs the hole.
He also said the ants stay in the same position for hours until the traffic dies down at the end of the day. Here’s some more examples of ants using themselves to form living bridges:
The guy that took this video says the ant being pulled up at the beginning just finished a 30 minute shift.
10 minutes. Link to Video