Australian weaver ants building their nest by pulling on leaves & working in chains, in NT, AU. The adult builders pull leaves together w/their pincers then interweave them w/silk threads produced by their larvae. They can build an entire nest in 24 hrs. photo: Ingo Arndt
Ant Death Spiral: A circle of army ants, each one following the ant in front (because they use scent/pheromones to follow each others' trails since they are blind), becomes locked into a circular mill. They will continue to circle each other until they all die.