Jellyfish has several legs Jellyfish is an invertebrate, compared with vertebrates is a relatively low biological. Their body structure is very simple. In fact, jellyfish do not have what we usually call legs, they only have tentacles, or tentacles. Of course, they can also use tentacles as their legs, because the function of tentacles is similar to legs. In the process of jellyfish activity, tentacles can play a role, when they want to move in a certain direction, they need to use tentacles.
Specifically, the number of tentacles of jellyfish is different. There are many kinds of jellyfish, these jellyfish will have certain differences, the specific number of their tentacles is not the same. For example, the number of tentacles in a large group of jellyfish is different, some species have four, others have eight. Another example is the large group of cubic medusae, which generally have eight tentacles. Some species have more tentacles, some even have more than 20 tentacles.
Although jellyfish are gentle creatures in appearance, they are actually very fierce creatures, and they usually do not let go when they encounter prey. Jellyfish have multiple tentacles with stinging cells on them. When jellyfish hunt for food, they release venom, which has the effect of paralyzing prey, and sometimes even killing prey directly because of paralysis.
After the prey dies, the jellyfish will use its tentacles to catch the prey, and then use polyps to suck the prey. Jellyfish polyps can also release an enzyme substance, which can quickly break down the protein of prey. In fact, tentacles are also the digestive organs of jellyfish, because this digestive system is relatively primitive, so food digestion and absorption speed is relatively fast.
