Cuttlefish May Communicate with Discolike Arm Gestures Scientists identified four arm wave signals cuttlefish use: “up,” “side,” “roll” and “crown” By Chris Simms edited by Sarah Lewin Frasier Researchers observed the common cuttlefish (Sepia officinalis) routinely wave its arms in four flashy gestures. Join Our Community of Science Lovers! Cuttlefish wave their expressive arms in…