8. The beak, the hardest part of the octopus, is made of the same chitonous material as human fingernails. Octopus with teeth. Most believe this is a disease that attacks the nervous system. Does anybody know what structures these things (and the teeth) are homologous to? It causes the octopus to eat itself and thus kills it off. BOSTON (AP) — Mythology and superstition have portrayed octopuses as alien beings or evil creatures dwelling in the terrifying dark depths of oceans. The giant Pacific octopus has three hearts, nine brains and blue blood, making reality stranger than fiction. The file-like organ is covered with tiny, sharp teeth that are replaced when they wear down, much as sharks regrow teeth. Octopus wrestling Octopuses (or octopi, if you prefer) are cephalopods, invertebrates that also include squid and cuttlefish. Autophagy or self-eating is not a survival strategy. The octopus has a veritable Swiss Army knife of tools located inside its mouth to pry open the shells it can't open with its tentacles. do octopus have teeth; animals ... different species, which have differently-shaped teeth, also have different cutting power. He may start the hole with saw-like teeth on his tongue (the radula) "but most of the drilling is carried out by the salivary papilla (small teeth-like bumps in his mouth). The answer to your question "what does the beak of an octopus do" is...The beak of an octopus helps it to eat. All extant cephalopods have a two-part beak, or rostrum, situated in the buccal mass and surrounded by the muscular head appendages.The dorsal (upper) mandible fits into the ventral (lower) mandible and together they function in a scissor-like fashion. Image source: imgur. The mouth also has a specialized tongue called a radula. A squid has more in common with a spider than you may think. An octopus does not have teeth is has a beak. Several octopuses were found to have eaten their own arms. What does the beak of an octopus do? It is black and looks like the beak of a parrot. And although the octopus does not have any teeth in the standard sense, it has several other just as effective methods of cracking into crustaceans and mollusks. The beak may also be referred to as the mandibles or jaws.. Fossilised remains of … Little wonder, considering they are a bit unusual. There are two tongue-related things I’d like to highlight: Lacking any bones, octopus arms are what biologists call muscular hydrostats. But the octopus still wins, because he does have teeth, indeed, depending on the species: up to four types. E.g., did octopi evolve teeth independently, or reuse a tooth-making routine that had been around almost forever? Yup! Things to know about the giant Pacific octopus… Find out about these and other octopus facts. ... is a significant effect of tooth morphology.