The most common octopuses we see are in the two- to four-pound range.

Staff at the centre said his death was not entirely unexpected, since common octopuses generally only live a couple of years.

The common octopus is easily adapted to captive conditions and has a rapid growth rate of 5% body weight per day.

The common octopus seems particularly suitable for aquaculture.

I read once where apparently the common octopus has an eye almost exactly the same as the human eyeb- caw!'

Training experiments have shown the common octopus can distinguish the brightness, size, shape, and horizontal or vertical orientation of objects.

I knew, of course, that even the common octopus shows its emotions with lightning-fast color changes-but this was something of a much higher order.

The common octopus hunts at dusk.

The common octopus, Octopus vulgaris, appears to be the most serious candidate for aquaculture in terms of its biological and market potential.

The common octopus (Octopus vulgaris) is the most studied of all octopus species.

It breeds at a lower rate than the partially sympatric Octopus vulgaris (common octopus).

It has been observed attacking a common octopus (Octopus vulgaris) by tearing off an arm with a twisting motion.

Aggregata octopiana - common octopus (Octopus vulgaris)

It is also captured in earthenware pots in the Mediterranean, although the fishery for curled octopuses is less important than that of the common octopus.

The researchers, from Israel and Italy, studied a common octopus, O. vulgaris, videotaping it in a laboratory set-up where it had one arm free.

Bigfin reef squids and the common octopus (Octopus vulgaris) were studied to resolve a century-long debate over whether cephalopods can hear.

He and several fellow experimenters investigated such things as the physical basis of memory, experimenting with the common octopus because it is one of the animal kingdom's fast learners.

Little do they know, the monster is the product of a secret military experiment - a genetic hybrid mutated from a common octopus and the prehistoric super-predator Dunkleosteus.

Animals include an abnormally large American Lobster and a blue lobster (shell changed blue due to an unusual discoloration), a Common octopus, and Lined Seahorses.

The Animal Procedures Committee, set up to advise the government on animal experiments, recommended that there was sufficient evidence of sentience to give one species of invertebrate, the common octopus, protection.

Nearly all landings of both species within these regions are taken by Portugal and Spain, with Spain taking the vast majority, although most of these will be of the common octopus.

In the UK, the common octopus, (Octopus vulgaris), is the only invertebrate protected under the Animals (Scientific Procedures) Act 1986 and other cruelty to animals legislation, extending to them protections not normally afforded to invertebrates.

The common octopus is sensitive to temperature, with an optimum range for commercial growth of 16-21 C. Above its optimal thermal range, growth and food intake decrease, and above 23 C loss in weight and increased mortality has been recorded.

Issued in "Stamps on a Roll" self-adhesive strips, the stamps feature the following wildlife: Tompot Blenny, Green Tiger Beetle, Red Squirrel, Golden Eagle, Common Octopus, Hermit Crab, Sea Slug and Bottlenose Dolphin.

Paul the Octopus (hatched in 2008, died October 2010) was a common octopus living in a tank at a Sea Life Centre in Oberhausen, Germany, who was used as an animal oracle to predict the results of football matches, usually international matches in which Germany was playing.

In the years prior to the description of this species in 1953, O. rubescens was widely considered to be a young Enteroctopus dofleini.

North Pacific Giant Octopus (Enteroctopus dofleini)

The North Pacific Giant Octopus (Enteroctopus dofleini) is a big cephalopod that is in the genus Enteroctopus.

Biozone showcases the amazing biodiversity found in the world's oceans and displays longhorn cowfish, lionfish, Giant Pacific Octopus Enteroctopus dofleini and seahorses.

While generally much smaller than the giant Architeuthis and Mesonychoteuthis, the largest of the octopuses, the Giant Pacific Octopus (Enteroctopus dofleini), can grow to be very large.