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What is the difference between an octopus and a zhangyu?
The "eight-clawed fish" is actually the octopus; both names refer to the same animal. Because the octopus has eight tentacles, people also call it the "eight-clawed fish" or "eight-strap fish." It belongs to the class Cephalopoda, order Octopoda. It has eight arms with suckers, can also squirt ink, its tentacles are relatively long, and its body is not very large. It is incredibly strong, cruel and aggressive, resourceful, and many marine animals fear it. It is also a sensitive animal, and its nervous system is the most complex and advanced among invertebrates. <p style="text-align:center"></p> <p style="text-indent:2em;"><span style="color:#FF0000"><strong>1. Highly sensitive touch</strong></span></p> <p style="text-indent:2em;">The octopus has eight highly sensitive tentacles, each with about 300 or more suckers, and each sucker has a pulling force of 100 grams. Once you are entangled, it is quite hard to break free. The octopus's tentacles, like human hands, are highly sensitive and are used to detect movements in the outside world. Whenever the octopus rests, one or two tentacles always stay on duty. If something happens, the octopus will squirt ink to hide itself, and it can squirt ink outward six times in a row.</p> <p style="text-indent:2em;"><span style="color:#FF0000"><strong>2. Color-changing ability</strong></span></p> <p style="text-indent:2em;">When the octopus experiences emotional changes such as panic, agitation or excitement, its skin changes color. The command system that controls the octopus's color changes is its eyes and brain. If the eye and brain on one side develop a problem, that side becomes fixed in one unchanging color, while the other side can still change color.</p> <p style="text-indent:2em;"><span style="color:#FF0000"><strong>3. Escape ability</strong></span></p> <p style="text-indent:2em;">The octopus has superb escape skills. Because the octopus can store water in its mantle cavity and live on the oxygen dissolved in the water, it can still survive for several days after leaving seawater.</p> <p style="text-indent:2em;"><span style="color:#FF0000"><strong>4. Living habits</strong></span></p> <p style="text-indent:2em;">The octopus is also an outstanding architect. Wherever octopuses like to dwell, “octopus cities” often appear; these “octopus homes” built of stones are packed closely together in rows and are quite spectacular. It has only one chance to reproduce in its lifetime. The octopus belongs to the mollusks, and after mating and laying eggs, both the male and female octopus lose their appetite and die after about one week.</p> <p style="text-indent:2em;">The above is some information about the octopus, and we hope it helps everyone better understand the octopus.</p>
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What is the difference between bluefin tuna and yellowfin tuna
There are three main differences between bluefin tuna and yellowfin tuna. First, the color of the dorsal fin differs: the first dorsal fin of the former is yellow or blue, while the dorsal fin of the latter is reddish-brown. Second, the value differs: the former is higher than the latter. Third, the size differs: the former can reach over 700 kg
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Is saury the same as hairtail? What is the difference between the two
Saury is not hairtail. Saury belongs to the order Clupeiformes, family Engraulidae, genus Coilia, and is a freshwater fish; together with pufferfish and Reeves' shad, it is known as one of the three delicacies of the Yangtze River in China, whereas hairtail belongs to the order Perciformes, family Trichiuridae, genus Trichiurus, and is a saltwater fish. Differences between saury and hairtail 1. Different appearance Saury is relatively small in size; adult saury generally has a length of 18-25 cm. Saury has an elongated body, a laterally compressed body, tapering toward the rear into a sickle shape. The head and back are light blue, the sides of the body are slightly yellow, the belly is grayish white, the bases of all fins are creamy yellow, and the edge of the caudal fin is black.
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What is the difference between red trout and salmon?
When red trout is mentioned, many people probably know nothing about it, but if you say salmon, many people know it. In fact, red trout and salmon are quite similar, and it is hard to tell them apart without looking closely. So what is the difference between red trout and salmon? 1. Red trout
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What is the difference between sole fish and cod? A quick guide to telling the two fish apart
Sole fish and cod are both types of sea fish, and both have important food and economic value, but do you know what the difference between the two is? Differences between sole fish and cod 1. Price Cod has many species, such as Pacific cod, Atlantic cod, walleye pollock, etc.,
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What is the difference between bighead carp and silver carp? Learn to tell them apart easily
The bighead carp is the silver carp; it is a fish of the genus Hypophthalmichthys in the family Cyprinidae, with a very large head, a laterally compressed body, a blue-black back, a grayish-white belly, pale gray fins, and many irregular small light-yellow and black spots on both sides. It is one of the "four major Chinese carps", growing fast and re
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What is the difference between flatfish and turbot? A quick guide to telling them apart
Flatfish and turbot are both flatfish and look very similar, but they still have differences. So, what are the differences between flatfish and turbot? Here is an introduction. Difference one, different species: flatfish, namely flatfish and high-eye flounder,
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What is the difference between channel catfish and catfish? Teach you to quickly tell the two fish apart
Channel catfish is also called channel cat, spotted fork-tailed catfish, and catfish is the same as sheatfish, sticky fish; they are all fish of the order Siluriformes, and their appearance looks very similar, but there are also differences. So, what is the difference between channel catfish and catfish? Difference one, different species: channel catfish is a fish of the family Ictaluridae in the order Siluriformes, and catfish
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Topmouth Culter vs. White Striped Fish: A Detailed Guide to the Differences, Teaching You to Quickly Tell the Two Fish Apart
The topmouth culter and the white striped fish are both fish of the subfamily Culterinae, family Cyprinidae, order Cypriniformes. They look very similar in appearance, and many people cannot tell them apart. In fact, they do have differences. So, what are the differences between the topmouth culter and the white striped fish? Difference one, different species: the topmouth culter
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What is the difference between huan fish and grass carp? Explained clearly in one article
Grass carp is a common edible fish in daily life, widely farmed because of its varied ways of eating, good taste and high nutritional value, so what is the difference between huan fish and grass carp? 1. What is the difference between huan fish and grass carp? Huan fish and grass carp have no difference, the two are actually
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