Crazy insect bastards and owners of one of the most ineffectual defence systems in the animal kingdom. The vinegaroon looks just like a normal beetle, but quite a bit bigger. If you attack it (why? why would you do this?) it sprays a jet of acetic acid, or vinegar, at you.

More interesting are the consequences of a vineragoon bite - everything you eat for a week will taste of vinegar, as Josh Homme found out to his cost.

If there is a purpose to genetic modification, it is surely to create an ice-cream float beetle.