biochemistry

Many farmers throughout Latin America and around the world rely on pesticides to control pest invasions; in the case of Andean potato crops, this method is not only costly but has been shown to cause adverse health effects as well. Due to the risks involved in pesticide usage, and the ever-increasing demand for high-yield crops, new methods of controlling pest invasions are being explored by researchers regularly. And as counterintuitive as these new findings sound, ecological scientists have discovered that, in the case of Colombian potato farms in the Andes, the pests themselves could actually increase productivity.

Meet the ballistics experts of the bug world: A quick draw beetle that fires volatile liquids with the pulse of a Tommy Gun, aphids that self-combust at the threat of a predator and a double-pistoled worm that sprays its victim with streams of goo. Of course, these insects are not the only invertebrates carrying chemical artillery—bees are maybe the most famous projectile-launching bugs around. The below insects, however, give a unique look into chemical warfare on a small scale.