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Continue to ChatPerfect hexagonal tubes in a packed array. Bees are hard-wired to lay them down, but how does an insect know enough geometry to lay down a precise hexagon? It doesn't. It's programmed to chew up wax and spit it out while turning on its axis, and that generates a circle. Put a bunch of bees on the same surface, chewing side-by-side, and the circles abut against each other - deform each other into hexagons, which just happen to be more efficient for close packing anyway. - Peter Watts from https://whatsmyquote.com/quote/perfect-hexagonal-tubes-in-a-packed-array-bees-are-hard-wired-to-lay-them-down-but-how-does-an-insect-know