Male mason wasps use genital spines to thwart predators, study reveals

Wasps seen piercing the mouth or other parts of tree frogs with their sharp weapon when being attacked

Kipling might well have believed that the female of the species is more deadly than the male, but when it comes to mason wasps, the latter have quite the weapon.

Researchers in Japan have discovered that male mason wasps use sharp spines on their genitalia to resist being swallowed by predators.