Its an 'arms race'. As crabs adapt to the current crop of cuttlefish ruses, the cuttlefish also adapt to overcome again. An aside, but the recent book by Dawk

Its an 'arms race'. As crabs adapt to the current crop of cuttlefish ruses, the cuttlefish also adapt to overcome again. An aside, but the recent book by Dawkins "The Genetic Book of the Dead: A Darwinian Reverie" is fascinating and explains how you can look at an animal and understand the environment of its ancestors. You can read it as a kind of massive autobiography of the species and detect waypoints on its evolutionary journey.