For all cephalopods, no two tentacles are exactly the same. This cluster of intelligent sea creatures including octopus, squid and shelled nautilus, possess a plethora of arms (in some species, as many as 90). In fact, a new study of fossilized specimens in Scientific Reports finds that an ancient cephalopod species called Vampyronassa rhodanica could have had specialized suckers along their arms to tightly clutch their prey — a fact that completely challenges previous perceptions of the species.