Topic: arm waves

Cuttlefish skin is a powerful rendering device capable of producing extraordinary changes in visual appearance over a broad range of temporal scales. Exhibiting a repertoire of chromatic, postural, and locomotion patterns, cuttlefish employ their versatile abilities for both camouflage and communication purposes. Our study introduces a novel form of communication display in the Sepia officinalis species: four distinct arm movements, termed "arm waves," characterized by long-lasting, expressive, and rhythmic bending and undulation. We aimed to investigate whether those signs are communication s