Noah rode out his flood in an ark. Winnie-the-Pooh had an upside-down umbrella. Fire ants (Solenopsis invicta), meanwhile, form floating rafts made up of thousands or even hundreds of thousands of ...
Fire ants survive floods by forming rafts made up of thousands of wriggling insects. New research reveals how these creepy-crawly lifeboats change shape over time. Noah rode out his flood in an ark.