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 ...

Red fire ants are forming rafts to travel on flood waters in the northeastern Australian state of Queensland, with the extreme weather threatening a countrywide spread of the highly invasive species. ...

Fire ants might be the scourge of southern states like Georgia and Texas, but scientifically, they are endlessly fascinating as an example of collective behavior. A few fire ants spaced well apart ...

Fire ant rafts hold together by constantly breaking apart. Swarms of the insects link up in vast groups to float across water, sometimes forming rafts the size of dinner plates. But how they withstand ...