The True Hive Mind - How Honeybee Colonies Think

I'm enjoying reviewing my Kindle reading highlights with the "Daily Review" feature, which lets you flick through highlights and notes you've made in Kindle books. Amid the LeCarre and Malcolm and Updike and Patti Smith and a way-too-big pile of books on genetics, I find this from Thomas Seeley's Honeybee Democracy:

We will see that the 1.5 kilograms (3 pounds) of bees in a honeybee swarm, just like the 1.5 kilograms (3 pounds) of neurons in a human brain, achieve their collective wisdom by organizing themselves in such a way that even though each individual has limited information and limited intelligence, the group as a whole makes first-rate collective.

Like many other biologists, Seeley sees a bee colony as not just a collection of individuals but as a sort of super-organism. Thus the brain analogy above. Thus this:

A colony of honeybees is, then, far more than an aggregation of individuals, it is a composite being that functions as an integrated whole. Indeed, one can accurately think of a honeybee colony as a single living entity, weighing as much as 5 kilograms (10 pounds) and performing all of the basic physiological processes that support life: ingesting and digesting food, maintaining nutritional balance, circulating resources, exchanging respiratory gases, regulating water content, controlling body temperature, sensing the environment, deciding how to behave, and achieving locomotion.

This extends to decision-making, which is the main subject of *Honeybee Democracy. *The bees exercise a collective intelligence that mimics not just small-group decision-making but the cognitive deliberations of our own brains:

Over the last two decades, while other sociobiologists and I have been analyzing the behavioral mechanisms of decision making by insect societies, neurobiologists have been investigating the neuronal basis of decision making by primate brains. It turns out there are intriguing similarities in the pictures that have emerged from these two independent lines of study. For example, the studies of individual neuron activity associated with the eye-movement decisions in monkey brains and the studies of individual bee activity associated with nest-site decisions in honeybee swarms have both found that the decision-making process is essentially a competition between alternatives to accumulate support (e.g., neuron firings and bee visits), and the alternative that is chosen is the one whose accumulation of support first surpasses a critical threshold. Consistencies like these suggest that there are general principles of organization for building groups far smarter than the smartest individuals in them.

The super-organism idea goes back to Herbert Spencer in the 19th century, and while it can get mushy around the edges, it's firm at the core. E.O. Wilson and Bert Holldobler elaborated it in their 2008 The Superorganism: The Beauty, Elegance, and Strangeness of Insect Societies, which I've not read, but which looks nice and meaty. Seeley is not quite as fine a writer as Wilson is (a high bar to clear), but Honeybee Democracy delivers many of the same pleasures that some of Wilson's writings do, with the science embedded, honeycomb-like, within the story of Seeley's long, clever exploration into the sweet science of honeybees. Seeleuy's curiosity drives both his work and his narrative, and we happily tag along, caught up in his fascination.

It helps that both the bees and Seeley's strategies for figuring them out are both clever as hell. Despite the superorganism meme, Seeley doesn't see individuals as automatons slaving away for the hive. Rather, "each one [is] an alert individual making tours of inspection looking for things to do and acting on her own to serve the community." Quiet but pleasing flourishes carry you along: the bees are like "flying penises" spreading seed from flower to flower, "their bodies ... thickly covered with plumose hairs that efficiently catch pollen grains."

At the book's end he offers "Five Habits of Effective Group." He has, he says, put his money where his mouth is, using these principles in his work as head of the Department of Neurobiology and Behavior at Cornell University. His 5 lessons for group decision-making:

1. Create groups with mutual respect and shared interest
2. Minimize the leader's influence on the group thinking
3. Seek diverse solutions
4. Aggregate the group's knowledge through debate
5. Use quorum responses for speed, cohesion, and accuracy

These work fairly well in small-town meetings, not so well at larger democratic scales, as we'll see vividly demonstrated over the next year or so — at the larger scale, we can't get past step 1, and disrespect for the other party seems increasingly a fundamental requirement for candidacy, at least among the GOP. Yet Seeley's guideliens certainly seem useful for small groups with shared interests (as in business), and I like the way he drew them from his study of bees: We see a sort of natural order of small groups emerge.

Honeybee Democracy provides not just a look at a particularly rich life of inquiry but some nice, unforced parallels between the workings of honeybee colonies, small human societies, and our great big human brains: Certain group dynamics, it seems, are scalable and fractal.

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*A new exercise for me, this annual review, and harder than it should be: I find my notes scattered over three different apps in my Mac, a pile of moleskines, and highlights in my Kindle app, which is where I found this. Hoping to find some easier way to get them all in one stream.

Image: honey bee swarm, by madrakas, via Creative Commons license.

See also:

• Honeybee Decision Making
• How headbutts and dances give bees a hive mind, by Ed Yong
• Decision Making in Bee Swarms Mimic Neurons in Human Brains
• Honeybees Might Have Emotions, Wired Science
• 8-Year-Olds Publish Scientific Bee Study, Wired Science

and more below