I Have Terrifying Large Insects Sting Me, For Science
Over the past 40 years (but in reality since I was five years old), I’ve been fascinated with insects and their ability to sting and cause pain. In graduate school, I became interested in why they sting and why stings from such tiny animals hurt so much.
To answer these questions, we first needed a way to measure pain – so, I invented the insect pain scale. The scale is based on a thousand or so personal stings from over 80 insect groups, plus ratings by various colleagues.
Insects sting to improve their lives and increase their opportunities. The stings provide protection, thereby opening doors to more food resources, expanded territories, and social life within colonies. By studying stinging insects, we gain insight into our own lives and the societies we live in.
To say that insects sting “because they can” isn’t all that helpful. The real question is why insects evolved a stinger in the first place. Obviously, it had some value, otherwise it would have never evolved – or, if initially present, it would have been lost through natural selection.
Stingers have two major uses: to get food and to avoid becoming food for some other animal. Examples of the stinger used for sustenance include parasitic wasps that sting and paralyse caterpillars that become food for the wasp young, and bulldog ants that sting difficult prey insects to subdue them.
More importantly, the stinger is a major breakthrough in defence against large predators. Imagine, for a moment, that you’re an average-sized insect being attacked by a predator a million times larger than you. What chance would you have?
Honeybees face this problem with honey-loving bears. Biting, scratching or kicking won’t work. But a stinger with painful venom often does.
In this sense, the stinging insect has found a way to overcome —> Read More