Search results
Results From The WOW.Com Content Network
Diagram of octopus from side, with gills, funnel, eye, ocellus (eyespot), web, arms, suckers, hectocotylus and ligula labelled. The skin consists of a thin outer epidermis with mucous cells and sensory cells and a connective tissue dermis consisting largely of collagen fibres and various cells allowing colour change. [26]
The common octopus (Octopus vulgaris) is a mollusk belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most intelligent. It ranges from the eastern Atlantic, extends from the Mediterranean Sea and the southern coast of England , to the southern coast of South Africa.
Hectocotyli are shaped in many distinctive ways, and vary considerably between species. The shape of the tip of the hectocotylus has been much used in octopus systematics. Many coleoids lack hectocotyli altogether. [6] Among Decapodiformes (ten-limbed cephalopods), generally either one or both of arms IV are hectocotylized.
They have a seemingly simple brain, not the large complex brains of octopus, cuttlefish and squid, and had long been assumed to lack intelligence. But the cephalopod nervous system is quite different from that of other animals, and recent experiments have shown not only memory, but a changing response to the same event over time.
Octopus is the largest genus of octopuses, comprising about 100 species. These species are widespread throughout the world's oceans. Many species formerly placed in ...
In the video above, the scientist explains that this particular species of octopus has "beaks for mouths and their brains are donut-shaped and surround their esophagus. The researcher goes on to ...
The octopus grabbed her hand and led her to something that it knew didn't belong on the ocean floor. Watch as the octopus shows her the 'mysterious structure' it had found! What an incredible ...
During reproduction, the male octopus deposits a spermatophore (or sperm packet) more than 1 m (3.3 ft) long using his hectocotylus (specialized arm) in the female's mantle. The hectocotylus is found on the third arm of male octopuses and occupies the last four inches of the arm. [39] This part of the male arm anatomy contains no suckers.