If you live in a rural or suburban area in the Southern states, you’ve likely seen a fire ant hill a few times in your life.

The invasive pest has already colonised the United States – now recent flooding is raising fears it will do the same in Australia.

Note: A few ant species, such as the Western thatching ant, bite and then spray a chemical called formic acid into the wound, which can cause the skin to blister ... The dreaded fire ant is ...

Although they are only 1 to 2 millimeters long, a sting from a little fire ant can cause acute pain and a blister. Native to Central and South America, the species has spread to other parts of the ...