We already know wasps are evil incarnate, but according to new research, they may yet have some redeeming features. Female beewolf digger wasps have colonies of symbiotic bacteria that inhabit their antennae and the wasps secrete this bacterial cocktail into the cocoons of their offspring. The bacteria create a potent salve of anti-bacterials and anti-fungals, and is the first known non-human case of prophylactic antibiotics. It’s a symbiosis to fight infection, not provide food. More