Octopus SVG is the most famous cephalopod squad. Typical octopuses described in this article are Incirrina sub-contractors, bottom animals. But some of the members of this suborder and all the species of the second suborder Cirrina are pelagic animals that live in the water column, and many of them are found only at great depths. The science of octopus and other cephalopods is called theutology.
Octopus SVG Habitat and distribution
They inhabit all tropical and subtropical seas and oceans, from shallow waters to depths of 100-150 m. Prefer rocky coastal areas, searching for caves and crevices in the rocks.
Octopus SVG Nutrition
Predators. Eating shellfish, crustaceans, fish. Mining ordinary octopus captures all eight tentacles. An octopus bites the victim with his beak, holding her with suckers. The venom of the salivary glands from the throat enters the victim’s wound. Individual preferences in food and the way it is extracted are strongly expressed.
Octopus SVG Behaviour and lifestyle
Most octopus species lead a benthic way of life, dotted with rocks, rocks and algae. In the Far East, empty scallop shells are a favourite shelter for young animals. During the day, octopus are less active than at night, so they are considered to be night animals.
Octopus SVG moves along the hard surface (including the steep one) using tentacles with suction pads. It can also swim with tentacles backwards, driving itself in a kind of waterjet engine – collecting water into the cavity in which the gills are located, and with force pushing it in the opposite direction, backwards, through the funnel, playing the role of a nozzle. The direction of travel changes by turning the funnel. Both ways of moving the octopus are quite slow: swimming, it is inferior in speed to the fish. Therefore, he prefers to hunt octopus from ambush, mimicking under the environment, and tries to hide from the pursuers.
Thanks to their soft, elastic body, octopus can penetrate through holes and slits that are much smaller than their normal body size, allowing them to hide in all sorts of shelters. Even in drawers, canisters, car tyres and rubber boots. Prefer covers with narrow entrances and spacious rooms. They keep their dwelling clean: they “sweep” it with a stream of water from the funnel, and put the scraps from the outside into a trash heap. When enemies (including divers or scuba divers) approach, they flee, hiding in crevices and under rocks.
Amazingly, many kinds of octopus produce ink jets – dark liquids produced by special glands. This liquid hangs in water in the form of shapeless semitransparent spots and remains compact for some time until it is washed by water. Zoologists have not yet reached a consensus on the purpose of this behavior. In the book “In the world of silence,” Cousteau suggested that these spots – a kind of false purpose, designed to distract the attention of the attacker and allow the octopus to buy time to hide.
The octopus has a way to protect itself: the tentacles captured by the enemy can be torn off by a strong contraction of the muscles, which in this case tear themselves apart. The detached tentacle continues to move and react to tactile stimuli for a certain period of time, which serves as an additional distraction for the predator pursuing an octopus.
Many species winter in deeper waters and migrate to shallower waters in summer.