The giant Pacific octopus (Enteroctopus dofleini) is often cited as the largest known octopus species. Think again! Bottom-dwelling octopuses primarily feed on mollusks, polychaete worms, and crustaceans such as clams, shrimps, lobsters and snails. The blue-ringed octopus' size is only five to eight inches. Octopuses make for unusual lovers. This octopus can paralyze and kill an adult human with a single bite. Log in or register to write something here or to contact authors. Some benthic and littoral species produce a smaller number of larger eggs which house a more highly developed larva. He may grab her, but carefully, before inserting his arm up into her body, injecting packets of sperm. Details of the grisly encounter are published in the journal Molluscan Research, along with those of a second encounter, this time between two octopuses of different species. He is not expecting her to squeeze, cutting off the supply of water to his gills. “Being overly aggressive to other animals on the sea floor would defy that strategy by attracting attention,” she says. Inky, a common New Zealand octopus, is believed to have climbed out of his tank, fallen to the floor, and slid across the aquarium floor to a drainpipe. Meet the Giant Pacific Octopus, perhaps the smartest of all invertebrates and the bane of many a Crab Fisherman. The behaviour is so rarely seen that the incident, and a couple of others like it, may change our understanding of octopus behaviour. The giant Pacific octopus, however, is not the record holder for dedicated brooding. The tiny blue-ringed octopus, one of the world's most venomous animals, can kill an adult human in minutes. 1 Blue-Ringed Octopus. It was kind of weird looking, it lived underwater, and until the invention of deep fryers, it wasn't especially tasty. For thousands of years, no one paid much attention to the octopus. My drunken friend and i attempt a octopus beheading that doesnt exactly go the way we had planned. In a single, extraordinary act, a female octopus surprises her mate, and changes how we think of her kind. Huffard agrees. One of the most persistent myths regarding octopus and squids is that of the giant squid -- a massive creature who sinks ships and feasts on humans. The behavior is surely a reason that the name “mimic” comes from. (credit: Jeff Rotman / NPL), View image of A male common reef octopus probes a female (credit: Georgette Douwma / NPL), one merciless female spend two days cannibalising a small male, View image of The deadly grasp of the female captured on camera (credit: C. Huffard), View image of A male wonderpus octopus is photographed strangling a rival (credit: Mike Bartick), View image of A common reef octopus glides the ocean (credit: David Fleetham / NPL). Humans may have their quirks and kinks, but sex in the animal kingdom can be truly strange and excruciatingly painful. To mate successfully, a male octopus must approach a female, and gently probe her with a single arm. We would snorkel for hours, looking into crevices, cracks and generally anywhere where the wily octopus may hide. Female black widows and praying mantis are notorious for killing and eating males before, during or after sex. There are two types of octopuses with regards to their feeding habits: bottom-dwelling octopuses and open-ocean octopuses. View image of Hunting a new mate? Think again! The mimic octopus isn’t the only creature capable of disguise, of course. ... octopus, oyster, periwinkle, etc. When an octopus becomes upset, it may eat itself, Making an F-16 from a cereal box, some Scotch tape, and a penny, How to write an episode of Dukes of Hazzard. “This unique anatomy opens doors to many behaviours that are unavailable to other molluscs, constricting being just one of them.”. The octopus probably sparked ideas of the Kraken, the akkorokamui, and more. Mosquito-borne illnesses such as malaria, dengue, West Nile disease, yellow fever, and Zika disease cause widespread suffering and death. Having found one, he or I would hyperventilate and spike the creature with a trident. I can confirm that kessenich's technique works. The veined octopus (Amphioctopus marginatus) is also known for its intelligence.In 2009 biologists reported having observed the animals excavating coconut half shells from the ocean floor and carrying them for use as portable shelters. A female chironomid uses her mouthparts to pierce the head of her male mate and, after extracting his body fluids as he transfers sperm to her, carries his desiccated carcass against her body for days. She dragged the male towards her. Both incidents are reminiscent of another witnessed in 2007, when scientists observed one merciless female spend two days cannibalising a small male, having previously attacked and suffocated him after having mated with him 13 times. Elusive creatures known mainly for their eight arms, ink blast, and high intelligence, octopuses are also fearsome predators with a variety of natural weapons at their disposal. How to kill octopus? Constricting might also prevent the subordinate octopus repelling the attack by expelling ink, which is also released through the funnel in the mantle. Nearby, sat a slightly smaller male. There are moral lessons in everything, even in killing a mollusk. Mimic octopus frequently imitates the act of other water animals to self-defense from predators. The first occurred during a dive within 10 metres of water off Fiabacet Island, when the researchers came upon a female common reef octopus sitting exposed on a coral reef outside her den. It lives in tidal regions ranging from Australia to Japan. Preferrably cooked in a soup, with potatoes. Blue-ringed octopuses, comprising the genus Hapalochlaena, are four highly venomous species of octopus that are found in tide pools and coral reefs in the Pacific and Indian oceans, from Japan to Australia. Males are thought to be eaten as, once they have mated, they can be a valuable source of food. Watch this Animals video, Octopus Kills Shark , on Fanpop and browse other Animals videos. Male Argiope spiders, for example, tend to be consumed by the female after their second insemination. He is not expecting to feel the brush of her arm, as it maliciously coils around his body. This amazingly beautiful species of octopus is considered one of the most deadly animals in the sea. Of course, at this point the octopus was very far from dead. The encounter seemed to end peacefully, but when reviewing images taken of the event, the scientists realised that the wonderpus octopus had actually wrapped an arm around the mantle of its rival, trying to strangle it. But they tend to grapple, pushing at each other, and pulling at their respective arms. The blue-ringed octopus is the world’s most venomous marine animal. Tourist Smashes, Kills, Eats Octopus Only To Find Out It's An Extremely Rare 'Hexapus' By Cavan Sieczkowski A tourist killed and ate an octopus he found while on vacation with his family in Greece, only to discover the rare six-limbed "hexapus" was the second ever found . But (especially at sea) there is no other way of killing the beast. In most cases, octopuses hunt … Though they use their eight arms to catch prey, which is devoured using a large, sharp beak in their mouths, they tend to avoid aggression. Think you know the outcome when it's shark versus octopus in an aquarium tank? Adults usually weigh around 15 kg (33 lb), with an arm span of up to 4.3 m (14 ft). However, Christine Huffard and colleagues have witnessed two separate incidents of octopuses doing just that in the wild. All content copyright © original author unless stated otherwise. Think again! A large octopus such as the giant octopus and the day octopus can kill a human. He then dropped 164 feet through the drainpipe to freedom in the sea. After sex, a male octopus is probably not expecting to be probed by a female. The venom of a blue-ringed octopus is contained in its saliva and is similar to the deadly toxin found in a pufferfish. Think you know the outcome when it's shark versus octopus in an aquarium tank? Mosquitoes are responsible for around 725,000 deaths per year. They can be identified by their yellowish skin and characteristic blue and black rings that change color dramatically when the animal is threatened. And similarly gruesome attacks have been observed in chironomid flies. Expelling ink is a defensive tactic usually used to repel predators, as it clouds the water, and potentially contains irritating chemicals. This animal is a carnivore and eats things like clams, shrimp, fish, lobster, and at times, will even eat birds and sharks. Then, divers observed a wonderpus octopus repeatedly approach and chase a mimic octopus foraging for food. In fact, octopuses spend most of their time, and use a variety of strategies, trying not to be seen. They are commonly found in the coral reefs and tide pools in the Indian and Pacific oceans. For Huffard, this is a subject ripe for research: “People have studied that topic extensively in arthropods, especially arachnids, but not in rigorous studies using cephalopods.”. After the killing business is done, you should turn the head inside out and rip out all the entrails. They weren’t thought to be constrictors, strangling each other as a snake might suffocate its prey. There are 15 different animals that have been imitated, included sea snake, stingray, lionfish, jellyfish, rock/ coral, starfish, eels, sole fish, furry turkey, And others fish. Young octopuses feed on plankton and other animal larvae. In the long-gone days of childhood, my father used to take me octopus fishing in the sea of Puglia. Read about our approach to external linking. Surprisingly, the most dangerous animal to humans is not a large, sharp-toothed predator but rather a tiny, buzzing insect. Such behaviour is regarded by biologists as the first documented example of tool use by an invertebrate.. Octopuses have separate sexes, and the male … In an extraordinary act, witnessed by scientists, the male octopus was strangled to death by his female lover, just moments after having mated with her. With the highest brain-to-body-mass ratios of all invertebrates – higher even than those of some vertebrates – the octopus is regarded as the smartest of all invertebrate animals. "The octopus may have been aided by the diver's light in detecting the lobster. Within a few days, after they hatch, the mother octopus dies. Its aggressiveness and predatory behavior as envisioned by authors like Jules Verne is the stuff of legend, but the giant squid does exist. more Think you know the outcome when it's shark versus octopus in an aquarium tank? The tiny eggs produced in the hundreds of thousands begin life as plankton, basically, living in a plankton cloud. How to use your computer as an entertainment center, Swooping through the almost silent night with no hands on your handlebars but it's OK, secret city map with pins set at the places their eyes had met, The Mythological Origins of The Silmarillion and Unfinished Tales, Back, my friends, the racks, the stacks & your load. For zoologist Mark Elgar of the University of Melbourne, Australia, an expert on invertebrate mating behaviour, the actions of the female octopuses make sense, given their eight-pronged anatomy. After two minutes, she then wrapped an arm around the opening to the mantle, and squeezed tight. No small types of octopuses can kill you except the blue ringed octopus. They can become aggressive with each other, particularly when fighting over food, dens, and mates. The octopus kills its prey with venom secreted from its salivary glands, then cracks the shell with its sharp beak and eats small crabs, hermit crabs, other crustaceans, mollusks and fish. But such deadly struggles do appear to make octopuses unique; as the first invertebrates known to aggressively grasp and kill another animal using constricting. And don't forget to tenderize it before. And let me remind you, octopuses have a strong beak (much like a parrot's), and they do use it. But don't worry about the millions of invisible men coming to attack your village because they won't kill you if you don't know how to fight them. Yet that exact fate befell one male common reef octopus swimming in the seas of Fiabacet Island, Indonesia. Also, octopuses didn't really attack humans, so they never attracted the same level of attention as sharks or tigers or tiger sharks did. Octopuses have long been considered relatively gentle creatures. “The more we get into the water and watch animals quietly from a distance, the more likely we might be to understand one day why female cephalopods might kill their mate,” she says. Giant octopus attacks scuba diver in the Sea of Japan. I don't know why you'd ever want to, but in case the situation ever comes up, bite it at the nerve center between the eyes. Everything2 ™ is brought to you by Everything2 Media, LLC. This is very complicated job,and take extra care octopus is a giant killer and very very strong more then you can imagine.10 pounds of octopus can tie your both hands and legs.To kill him must have a sharp object like stick or iron rod then you can inside out his head but make sure his tooth doesn't torch you,and that is done The lobster saw the octopus first, and attempted to move away, at which movement the octopus pounced. The Pacific octopus is larger than any other octopus species. Killing Octopus and pranging it for nice meal like sushi and shashimi ! The more we get into the water and watch animals quietly from a distance, the more likely we might be to understand one day why female cephalopods might kill their mate. Learn more fascinating facts and read inspiring stories about animals like octopuses in the bestselling book Animalkind. Raw video: Giant octopus latches on to Russian scuba diver in the Sea of Japan. Most people consider them nothing more than a summer evening nuisance, but they are the deadliest animal on earth. Octopuses are a type of mollusc known as a cephalopod, a group that also includes squid. Open-ocean octopuses feed on fish, birds, and snails. “The specific method by which the female octopus captures and kills her mate – constricting him with her many legs – is novel, but only because this can be done only by an octopus… Small octopuses cannot kill a human unless it is the blue ringed octopus. The common octopus would be unique for its appearance alone, with its massive bulbous head, large eyes, and eight distinctive arms. For now, scientists do not know how common constricting might be in these or other octopuses in the wild. On land, the chameleon has been admired for millennia for its colour changing abilities. Think again! The wheel of life and all that, once again apparent. (credit: David Fleetham / NPL), View image of Suckers or weapons? Which means that the biting technique had to applied - this is more easily said than done, when you are bobbing up and down in a choppy sea, and the octopus is doing its level best to get off the trident and into your mask. After another two minutes, the male stopped moving. The female then enveloped the male’s body with her own and dragged him into her den, where the scientists presume she ate him. The octopus holds the distinction of being the most intelligent of all invertebrate animals. A large octopus that is the giant pacific or day octopus with an angry mood can and will kill a human. He is not expecting to be held in a deadly, suffocating embrace. Which means that the biting technique had to applied - this is more easily said than done, when you are bobbing up and down in a choppy sea, and the octopus is doing its level best to get off the trident and into your mask. Then the female unexpectedly lunged forward, and with two arms, grabbed the male around his mantle, a structure octopuses use as a respiratory chamber to pass water through a funnel and across their gills. For 15 minutes the two animals mated. Other invertebrates, such as insects and nudibranchs, are known to engage in sexual cannibalism. Kosher animals are animals that comply with the regulations of kashrut and are considered kosher foods. When their common source of food depletes, octopuses may feed on smaller species of octopus to survive. Don't kill your invisible husband to see what he looks like or you'll sob your heart out. As for the why would you ever want to do it: to eat it, of course. ), sea cucumbers, and jellyfish. The largest specimen of this species to be scientifically documented was an animal with a live mass of 71 kg (156.5 lb). One deep-sea octopus was recorded guarding her eggs for four … Think you know the outcome when it's shark versus octopus? “The specific method by which the female octopus captures and kills her mate – constricting him with her many legs – is novel, but only because this can be done only by an octopus,” says Elgar. The Argonaut octopus' (pictured) mating ritual has been voted the strangest. Sharks vs. Of course, at this point the octopus was very far from dead. A cloud of scavenger fish will appear out of nowhere and feast on tasty morsels. Or a new victim? Octopuses are more likely to retreat from a threat, such as a predator, than to fight, and they tend to shy away from most confrontations with other animals, says Christine Huffard, a marine biologist at the Monterey Bay Aquarium Research Institute, at, Moss Landing, California, US. 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