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www.dailymail.co.uk/sciencetech/article-1044162/How-arms-does-octopus-Only...

Ask anyone how many arms an octopus has and the usual answer will be eight. But scientists now insist these nautical animals only have six. In a new study they found that the creatures used six of ...

en.wikipedia.org/wiki/Octopus

Octopus arms do not become tangled or stuck to each other because the sensors recognise octopus skin and prevent self-attachment. The arms contain tension sensors so the octopus knows whether its arms are stretched out, but this is not sufficient for the brain to determine the position of the octopus's body or arms.

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

5) Octopus arms have a mind of their own. Two-thirds of an octopus’ neurons reside in its arms, not its head. As a result, the arms can problem solve how to open a shellfish while their owners ...

www.thetimes.co.uk/article/how-many-arms-does-an-octopus-have-wt9vp3z7nzx

A giant Pacific octopus called Mavis has helped researchers to prove that the one thing everyone knows about the creatures is wrong. The name octopus is derived from the Ancient Greek for eight feet.

www.answers.com/Q/How_many_arms_does_an_octopus_have

Technically, octopus and squid have the same number of arms (8), but squid have two long tentacles with fleshy clubs at the end, making their total appendage count 10.

en.wikipedia.org/wiki/Cephalopod_limb

Many octopus arm anomalies have been recorded, including a 6-armed octopus (nicknamed Henry the Hexapus), a 7-armed octopus, a 10-armed Octopus briareus, one with a forked arm tip, octopuses with double or bilateral hectocotylization, and specimens with up to 96 arm branches.

www.quora.com/How-many-arms-does-an-octopus-have

Of the three hundred or so species of octopus, all but one have eight arms (no tentacles). The exception is Haliphron atlanticus aka the Seven-Arm octopus which has what the name implies - seven arms (no tentacles).

www.telegraph.co.uk/.../2547597/Octopuses-have-two-legs-and-six-arms.html

Octopuses have two legs and six arms To most of us it has always seemed obvious that an octopus has eight arms.

www.thoughtco.com/fascinating-octopus-facts-4064726

There are nearly 300 different species of octopus identified to date—more are being identified every year. The largest identified octopus is the giant Pacific octopus (Enteroctopus dofleini), the full-grown adults of which weigh about 110 pounds or so and have long, trailing, 14-foot-long arms and a total body length of about 16 feet. However ...