[7] The colour alterations are instantaneous and produced by chromatophores less than direct Charge of the brain.[8] This octopus occasionally produces a "passing clouds" display when stationary near prey for instance a crab; this mimics a darkish shadow passing across its floor and may encourage the crab to maneuver incautiously.[nine] https://k2-chemical-price72669.fare-blog.com/38120380/luk2-amazon-for-dummies