Why do bees die when they sting you? (2021)
Scope of the Discussion
- Thread centers on why honeybees die when stinging humans, and what this implies about evolution, altruism, and “superorganisms.”
- Much of the debate is about how to correctly explain this in evolutionary terms, and whether the article’s framing is accurate.
Group Selection vs Gene/Kin Selection
- Several commenters strongly reject “group selection” as a primary mechanism, arguing that:
- Selection operates at the level of genes; apparent group-level effects are usually kin selection.
- Haplodiploidy (male haploid, female diploid) in bees makes sisters unusually related (~75%), favoring altruistic worker behavior.
- Others defend the idea that multi-level or group-level selection can be a useful description, especially for eusocial “superorganisms,” but agree that many biologists are wary of it.
- Some criticize the article’s dismissal of haplodiploidy as too weak, given its explanatory power for eusociality.
Mechanics of Bee Stings
- Honeybee workers die when stinging mammals because barbed stingers lodge in elastic skin; when the bee pulls away, the abdomen is torn open.
- Against this, several point out:
- Bees can often sting insects without dying; the barbs don’t catch on exoskeletons.
- Queens have smooth, non-barbed stingers and can sting repeatedly, especially to kill rival queens.
- There are reports and videos of workers sometimes working the stinger loose from human skin and surviving, though others say most die once the stinger is embedded.
- Pheromones and sound from a stinging bee help recruit other workers, leading to swarm attacks on large threats.
“Why” Questions and Evolutionary Explanation
- Multiple comments criticize facile “survival of the fittest” stories as circular or unfalsifiable if they don’t specify concrete costs, benefits, and constraints.
- Others respond that:
- Evolution is about “fit enough,” not perfection; many traits persist simply because they’re not costly enough to be removed.
- Detailed historical causes are often unknowable; evolutionary narratives are more like constrained historical reconstructions than strict mechanistic proofs.
- The right question is often “how can this be consistent with selection and constraints?” rather than a single-purpose “why.”
Bees as Superorganisms and Human Parallels
- Many lean on the “superorganism” view: individual workers are disposable units serving colony-level reproduction, making suicidal defense less paradoxical.
- Some extend this to humans (grandparental care, eunuchs, taxes, social roles), but these analogies are debated and not treated as rigorous.