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How tongues stick out
Paul Ingraham • ARCHIVEDMicroblog posts are archived and rarely updated. In contrast, most long-form articles on PainScience.com are updated regularly over the years (see updates page).
“Muscular hydrostats” are cool. 😎 Tongues, elephant trunks, and octopus/squid tentacles are the classic muscular hydrostats. Basically, you can change the shape of a “water balloon” by squeezing it — and a tube full of muscles is like a water ballon that can squeeze itself into different shapes. Kooky.

Tongues are muscular hydrostats.