[salgernon]

This was simply wonderful, and hidden at the bottom was a link to an insect named "Issus coleoptratus"[1] which evolved something like a biological gear for synchronizing its legs.

As an almost complete aside, in Terry Pratchett's "Last Continent" there is a God of Evolution that comments on how difficult it is design a biological wheel.

“It’s very hard to design an organic wheel, you know,” said the god reproachfully. “They’re little masterpieces.”

“You don’t think just, you know, moving the legs about would be simpler?”

“Oh, we’d never get anywhere if I just copied earlier ideas,” said the god. “Diversify and fill all niches, that’s the ticket.”

“But is lying on your side in a mud hole with your wheels spinning a very important niche?” said Ponder.

[1] https://en.wikipedia.org/wiki/Issus_coleoptratus