There are a three very different ways of describing this. 1) Ants build flotation devices to escape flooding and protect the vulnerable queen. 2) Ant rafts use buoyant babies as a floatation device in floods. 3) Ants use their babies as 'floaties' during floods.
Not a great big fan of anyone who might use their child as floatation
device. But I am prepared to become quite vehement in objecting to any
kind of multiplication from the mind that come up with description number three.