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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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