Close-up of cuttlefish hovering over gravel in exhibit. The cuttlefish will be featured in the "Tentacles" exhibition at the Monterey Bay Aquarium. © Monterey Bay Aquarium

Close-up of cuttlefish hovering over gravel in exhibit. The cuttlefish will be featured in the "Tentacles" exhibition at the Monterey Bay Aquarium. © Monterey Bay Aquarium