The sea cucumber’s skin has three states—stiff, medium, and soft. To change between states, sea cucumbers link or unlink fibers in their skin. They do so by activating different stiffening or softening proteins.
Ɛpo mu ɔsa betumi ama ne were ayɛ denneennen, obetumi ama ayɛ twann, na obetumi nso ama ayɛ mmerɛmmerɛmmerɛw. Dɛn na ɛma otumi yɛ saa? Nhamahama bi wɔ ne were mu. Sɛ ɔkeka toatoa mu a, ɛwɔ sɛnea ne were no bɛyɛ, na sɛ ɔtetew ntam nso a, ɛwɔ sɛnea ɛbɛyɛ. Nanso, sɛ ɛbɛyɛ yiye a, gye sɛ opuw ahoɔdennuru bi gu ne were mu. Ahoɔdennuru no gu ahorow; ebi ma ne were yɛ den, na ebi nso ma ɛyɛ mmerɛw.