In the last issue of the push, we introduced an animal that looks like a plant, the leaf sea dragon (I reviewed). The creature introduced today is very powerful, it not only looks like a plant, but even the name is like, it is - sea lily.
In fact, although there is a "lily" in the name, the sea lily is an ancient marine echinoderm that has existed for hundreds of millions of years. Later, there was a "mass extinction", and the ancestors of the sea lily withdrew from the stage of history. At present, there are more than 700 species of sea lilies that live in the modern ocean.
Flowers are not flowers, nets are not nets
The body of the sea lily is soft and colorful, and the upright "waist pole" is divided into many knots, and the top of each branch grows a "flower" with buds. In fact, these are not flowers at all, but the "nets" used by sea lilies for predation. Feather-like twigs will also grow on their wrist branches, which will block the fish and shrimp that break in with the water and prevent them from escaping through the "net".
Eat to open your mouth
There are many types of sea lilies, and the number of wrists on the body is also different, most sea lilies have 10 to 50 wrists, and some even have as many as 200. Sea lilies generally eat plankton from the sea. When it is time to hunt, they raise their wrists high and wait for the sea to bring food into their mouths. After eating and drinking, they will fold their wrists and sag and begin to rest.
Tenacious vitality
Sea lilies, rooted in the seabed, are often ravaged by schools of fish because they cannot walk. Poor sea lilies were bitten off their "stalks" and some lost their "flowers," which was very tragic. Those who can survive are all based on unique survival skills and tenacious willpower. Those sea lilies that have been bitten off their "stalks" will be reborn and become "flowers" that can move, the sea feather star.
Sessile and sessile
Depending on the external morphology, sea lilies can be divided into two families – sessile sea lilies and sessile sea lilies. The biggest difference between them is whether they can move freely. Sea lilies with stalks are fixed on some objects and cannot move, but their wrists are quite developed, like a broom, and when they are shaken back and forth in the sea water, they can catch small fish and shrimp. There are few sessile sea lilies, but they can move freely and are able to prey more.
Reading this, do you know what kind of creature the sea lily is? If you had to give it a name, what would you call it?
extra!
Published in the last issue push "In? Ask you a question: Are there any penguins in the Arctic? In , the list of small partners who answered the question correctly. They will get a handbook sent by the Small Hymney Editorial Department, please contact us in the background of the winning friends, leave the address, and the courier brother will rush to you non-stop! Manual @ Hui Chang @ Duo Ai Ke @d @ Tang XiaoXiao & Xiao Xiao Tang @ Miss Hedgehog
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