"The large shell on the right, which is shaped like a cone, and has what looks like lines of letters on it, is an Alphabet cone. Live cones are predatory hunters. They ""harpoon"" their prey with a barbed tooth linked up to a poison gland which secretes a rich blend of neurotoxins! Cone snails will ""sting"" humans too, so if you come across a live cone snail in your travels, do not tuck it in your wetsuit, and also do not carry it around in the palm of your hand. This particular shell is not fresh; it is worn on the surface and on the apex, and it is a tinged green with algae. All this after the death of the cone snail. However, the vertical scar facing the camera shows that this cone snail survived a fairly serious predation attempt, healed the break, and went on to live a fair bit longer. I am not sure what kind of animal would try to eat a fairly large cone snail like this. Strikes me as a risky venture..."