Australia's push to defeat the yellow crazy ant

A detection dog is helping authorities in Australia eradicate the last remaining pockets of aggressive yellow crazy ants.

Source: DEWHA

First discovered in Australia in the 1980s after probably arriving on a cargo ship, the Yellow Crazy Ants spray formic acid when aggravated, and have devastated populations of frogs, lizards and ground-nesting birds.  The ants can form super colonies containing thousands of queens.  It is estimated that up to 20 million worker ants can inhibit a single hectare of land.