水母的特性?(用英文)十分

Jellyfish come in a big variety of colors. They are white, blue, pink, yellow, green, purple, red, orange, and striped. Each one of those colors represents the same thing. They are all bright colors and tell their enemies that they are dangerous fish.
Tentacles
The jellyfish’s tentacles look just like cooked noodles. The tentacles hang from underneath the jellyfish’s body. They can be as long as 1 cm to 120 feet long. That is longer than a basketball court!
Some jellyfish have more tentacles than they do body. Other jellyfish only have 1 cm long tentacles. The tentacles on a jellyfish are around the mouth. That is because when jellyfish grab their prey with their tentacles that sting them. After jellyfish sting their prey the jellyfish will pull their prey up to their mouth with their tentacles so that they can eat their food.
Size
Jellyfish can be as small as a grape or as big as a bed. It depends on what kind of jellyfish it is. If it is a box jellyfish and it is full grown it will be 4 meters long. If it is an umbrella jellyfish and it is full grown then it will only be about 1 inch long.
Body
There are two layers in a jellyfish. There is an outer layer and an inner layer. The outer layer of the jellyfish is the protection. It protects jellyfish from their enemies. The inner layer is the lining of the jellyfish’s stomach. In between each layer is a gooey like material, which makes up the jellyfish.
Shape
Jellyfish come in three different shapes. They either come in a cup, bowl, or parachute shape.
How long do jellyfish live?
Jellyfish tend to live for about one year. If jellyfish don’t live for about one year that is probably because another fish, turtle, or bird eats it. Another way they could die early is if they aren’t in salt water. Jellyfish have to be in salt water to be able to live.

Most sea animals are decreasing from the amount of pollution in the water. Jellyfish have been increasing for the past 10 years. That means that the pollution hasn’t harmed the jellyfish yet. We don’t know yet if pollution will affect the jellyfish later on.

How long have jellyfish been on this earth?

Jellyfish have been on this earth for a very long time. They have been on for 450,000,000 years. That’s longer that dinosaurs!

What happens when jellyfish get washed up to shore?

When jellyfish get washed up to shore they can’t get back in the water. If you spot one laying on the beach remember where you saw it. Go back the next day. Then you will find that the jellyfish has melted. When jellyfish melt, all there will be is some of its skin surrounding the jellyfish. The inside will have evaporated.

Live in the ocean or in aquariums.
They look like bells with strings hanging from them.
They eat copepods or sometimes fish.
95%of them is water.