On this day, Coral Elementary School was on vacation. I was a little bored at home and slowly met up with Nini to the Coral Garden. There were red, purple, and pink corals everywhere in front of me, and they were all blooming beautifully! Slowly I saw a coral with long tentacles

On this day, Coral Primary School had a holiday. I was a little bored at home and slowly met with Nini to the Coral Garden. There were red, purple, and pink corals everywhere in front of me, and they were all blooming beautifully!

Slowly saw a coral with long tentacles stretched out, swaying in the water, and said in surprise: "These corals look like the anemone hut you live in!"

After hearing this, Nini carefully He got close to the piece of coral, looked at it carefully and said, "It does look like it. I have been living in the sea anemone hut and almost didn't recognize it. But I heard my mother say that corals and sea anemones were related in the past, and they all originated from the same An ancestor.

This kind of thing that looks very similar to sea anemones should be soft corals . Their tentacles have many hairy little thorns like cactus. Sea anemones are different. The tentacles of sea anemones are very smooth. , and they are round and fleshy, so it is very comfortable to live in them. "

"Are their tentacles also poisonous?" he asked slowly. "Of course they are poisonous. Look at their bright colors, and they are all meat-eating animals. You must be careful when approaching them!" Nini said seriously.

"Yeah!" So, he took a few steps back slowly and immediately, hesitated and took a few steps back again. Nini couldn't help laughing after seeing it: "Don't be so scared, the coral won't swim over."

"But doesn't your anemone house move? You used to complain that because of this, it always I can’t find my home.” “Oh, but corals don’t move.” “…” After

finished speaking, Nini and I slowly started walking around the coral garden again.

"Hey, why are the corals here white?"

"Really, why is this?"

"I know!"

and Nini slowly looked towards the source of the sound, and found that it turned out to be the source of the sound they met yesterday. to parrotfish .

"Hehehe, because I like to eat corals, I know something about them. In fact, most of the corals are white, because they live in symbiotic zooxanthellae . The zooxanthellae will use the power of the sun, Put them in colorful floral clothes, so they have various colors.

Why are the corals here white? This is because the zooxanthellae living in the corals here have left, or It died, so the coral here returned to its original white color! "

"Oh, that's it!" Slowly and Nini said in unison, and the parrotfish turned around and gnawed on a nearby piece of coral. Slowly seeing this, his eyes widened, "Isn't it afraid of being poisoned? Doesn't it know that corals are poisonous? Can corals be digested if they are so hard?"

Nini replied slowly: "Not all corals are poisonous. I heard that parrots are poisonous. The mouth fish can directly excrete the indigestible corals. It seems that the fine sand on the nearby white beach is excreted by it. ""..."

Okay, kids, go to sleep~ Good night. , editor of Good Dream

| Sanshui·Haihai

reviewer | Chen Qiao

chief planner | Uncle Hao