[Original] Jellyfish Traveling in the Underwater World-yan lin (Marketing Department)


Time:

2020-03-23

[Original] Jellyfish Traveling in the Underwater World-yan lin (Marketing Department)

On the weekend of August 2014, the weather was fine, and the whole family set off for the underwater world of Zuohai Park to take the children to see the magic of nature.

Jellyfish, it is an important large plankton in the ocean and belongs to the acanthopanax. Jellyfish have a very short life span, with an average life span of only a few months. Jellyfish are invertebrates, a member of the phylum coelenterates. There are more than two hundred species of jellyfish in the world's oceans, and they are distributed in waters around the world. The shape and size of jellyfish vary, and the tentacles of the largest jellyfish can extend about ten meters away. In classification, some belong to hydrozoa and some belong to mantle jellyfish. in their life history, almost all species have two types, namely hydrozoa type and jellyfish type, and there are two types of intergenerational interchange between sexual reproduction and asexual reproduction. the jellyfish we commonly see is the sexual jellyfish type. (From Baidu Encyclopedia)