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www.quora.com/Does-an-octopus-have-bones-Why-or-why-not

The ancestors of the octopus had a vestigial internal shell, as seen in fossils. Cuttlefish retain a similar internal shell, but the modern octopus has completely lost any hard body parts other than the beak. Presumably being entirely soft-bodied is an advantage for fitting into tiny spaces for protection or to pursue prey.

en.wikipedia.org/wiki/Octopus

Octopus species that produce larger eggs – including the southern blue-ringed, Caribbean reef, California two-spot, Eledone moschata and deep sea octopuses – do not have a paralarval stage, but hatch as benthic animals similar to the adults.: 74–75

www.smithsonianmag.com/science-nature/ten-curious-facts-about-octopuses-7625828

Ten Curious Facts About Octopuses Octopuses, an inspiration for monsters throughout history, get a fresh look through a new book that dives deep into the creatures’ mysterious lives

www.answers.com/Q/Does_a_octopus_have_bones

Does a octopus have bones? No. The only solid, hard body part is its mouth, which is like a beak. That is why they can hide in really small spaces, like a jar or in a small hole. On PBS, in a ...

answers.yahoo.com/question/index?qid=20061012182412AAI1OnO

they have semi solid membranes for bones, its chewy and i dont like to eat it ! They have tubes of it instead of bone. Id liken it to cartilage. The aother possibility is that Bones is still on the Enterprise and so no, the octopus doesnt have him !! lol Showing my age now

www.nbclearn.com/portal/site/k-12/flatview?cuecard=5706

The muscle does the work, but this muscle wouldn’t work if it wasn’t attached to a bone. And this report is about two researchers who are interested in how muscles work when they don’t have a bone to pull against. At the University of North Carolina at Chapel Hill, Bill Keer is studying how muscles work without bones.

www.kgbanswers.com/does-an-octopus-have-a-skull/1547829

Does an octopus have a skull The KGB Agent answer: Octopuses have no bone structure being invertebrates but do have a skull, a shell rudiment and a beak.

www.whalefacts.org/octopus-facts

Octopuses have eight long arms that they use for locomotion, and they are invertebrates, which means they have no backbone. In fact octopus completely lack the presence of any bones, which makes them extremely flexible and maneuverable.

www.quora.com/Octopuses-dont-have-bones-so-how-do-they-move

“Octopuses don't have bones, so how come they can move.” Worms don't have bones either. Neither does an elephants trunk… All can move. The answer is that they all possess physical structures called Muscular hydrostats which is a muscular system without bones.. The link above goes into more detail about the anatomical specifics.

www.bbc.co.uk/newsround/32335519

They're the eight-tentacled creatures of the ocean, with huge heads and strong suckers along their 'arms'. But how does an octopus move so gracefully without having any bones? It's a question that ...