Comment by pigsty

I was in Borneo last month and saw round lamps in a rainforest covered in swarms of ants at night, all standing equidistant and with their jaws wide open and raised. I picked up a leaf and poked one in the mouth and it immediately clamped shut and other nearby ants rushed over to assist the ant in pulling in the leaf.

It seems like the ants stand on the lamps and wait to catch other insects that fly by then strike in unison. It was an incredible strategy.