The longest living animal on earth is the lighthouse jellyfish. The lighthouse jellyfish is a small jellyfish. The body is bell-shaped, about 4-5 mm in diameter. The body is transparent and the red digestive system can be seen. It looks like a lighthouse, hence its name. The stomach of the lighthouse jellyfish is huge and bright red, with a cross-shaped cross-section. Live mostly in tropical waters. It is carnivorous and feeds on plankton, small crustaceans, polychaetes and even small fish. The lighthouse jellyfish reproduces asexually from a polyp and is the only known organism capable of reverting from a sexually mature stage to a larval stage. It takes 25 to 30 days to reach sexual maturity in water temperatures of 20°C.
The lighthouse jellyfish is a small jellyfish. The body is bell-shaped, about 4-5 mm in diameter. The body is transparent and the red digestive system can be seen. It looks like a lighthouse, hence its name. The diameter and height of the umbrella-shaped body are approximately equal. The protruding side is called the outer umbrella surface, and the concave side is called the lower umbrella surface. There is a hanging tube in the center of the lower umbrella surface, called the vertical lip. The free end of the vertical lip is the mouth. There is a circle of tentacles on the edge of the umbrella, called the hook hand. A narrow membrane-like structure extends inward from the edge of the jellyfish's umbrella, called the limbus membrane. The limbus membrane is a characteristic of jellyfish of the class Hydrozoa. The body wall structure is composed of two layers of epithelial muscle cells with mesoglea sandwiched between them. Four radiating tubes extend from the stomach pouch to the fimbriae, and are connected to the ring tube parallel to the fimbriae. Small centrifugal tubes can also be extended from the ring tube into the tentacles, directly to the end of the tentacles. There are sensory organs such as eyespots or balance sacs at the base of the fimbria or tentacles. The stomach of the lighthouse jellyfish is huge and bright red, with a cross-shaped cross-section.
animal tags：
you may also like
Koi, a beautiful ornamental fish, is actually a variant of carp. It originated in Japan and has now become a high-end ornamental fish that is popular all over the world. There are many types of koi, which can be roughly divided into 13 categories according to domestic and international standards, wi...
The wisdom of our people is so amazing! They use duck as an ingredient and combine different production techniques and seasonings to create many regionally representative delicacies. Do you know where the duck is famous for being delicious? This article compiles the top ten famous duck specia...
Animal sexual desire refers to the tendency or intensity of sexual behavior an animal exhibits for the purpose of reproduction. Different species of animals vary greatly in their sexual desires. Some animals, such as cats, canines, and birds, mate frequently during estrus until pregnancy occu...
Many people mistakenly believe that birds have low levels of intelligence and simply regard them as warm-blooded animals. In fact, there are many species of birds in the world with very high intelligence. Do you know which birds have the highest level of intelligence in the world? In this art...
The giant of the ocean, the whale, is known as the largest mammal on earth. Its enormous length and weight are incredible. So, do you know which whales are the largest in the world? This article will take a look at the top ten giant whale species for you one by one. They are blue whales, fin...
Although there are more than 14,000 species of butterflies in the world, many are on the verge of extinction and have become extremely rare and precious. So, do you know which butterflies are the most precious?This article will introduce you to ten of the world's most precious butterflies,...
The fairy wasp is one of the smallest animals in the world, with a body length of only 0.2 mm. It is also the smallest insect on earth. As the smallest flying insect in the world, fairy wasps mainly feed on the eggs of other insects. The lifespan of this tiny flying insect is about 21 days....
Mosquitoes are extremely nasty insects with piercing-sucking mouthparts and tiny bodies. Most male mosquitoes of the family Culicidae mainly feed on plant juices, while female mosquitoes need to ectoparasitize on the surfaces of other organisms in order to meet their growth needs, using their...
Email: jsset#163.com (change # to @) Please indicate your purpose of visit! Guangdong ICP No. 2022053326 XML| map| Chinese
