After a pause, Professor Li added: "Strictly speaking, I can't say for sure. Starfish live in the sea, and their growth stages include the larval stage. There may be some kind of sea snake that I don't know that will prey on them. But the adult stage

Starfish, so far, I haven't seen any snakes interested in them."

The larvae of starfish do not look like they do now. Starfish in the larvae stage look small and weak.

Professor Li said: "Starfish have more natural enemies in the larval stage, while the number of natural enemies in the adult state is greatly reduced. Therefore, when we consider the prevention and control methods of starfish, we will also start to deal with them in their larval stage and formulate removal strategies."

Feng Yi asked: "In other words, there is no predatory relationship between snakes and adult starfish?"

Professor Li thought for a moment and said: "Whether snakes eat adult starfish can be analyzed from the perspective of snake eating. Let's not talk about toxicity. Adult starfish have flat bodies and spines, and the calcium bone plates are not very tough.

, it is difficult for small snakes to swallow them. From the perspective of energy conversion, even if a snake can swallow it, a starfish can not provide them with much energy.

"Also, my research on snakes is limited, but I have also heard that snakes have the ability to judge the head and tail of prey. When swallowing food, they will start from the head. I can't imagine how a snake can swallow a starfish and find the head.

?"

Professor Li looked at Feng Yi, "So, based on these, I surmise that no snake would be stupid enough to eat it."

Feng Yi nodded and thought in his mind:

There is no predatory relationship between snakes and starfish, and they are not considered natural enemies of starfish.

But those starfish were afraid of me, so much so that the group stayed away from me.

Therefore--

I have nothing to do with snakes!

It has nothing to do with snakes on land or in the sea!

Therefore, those starfish are only afraid of me.

Feng Yi's thoughts went around in his mind and he said, "I saw... when someone was catching a starfish, the starfish broke one of its wrists."

Of course he wouldn't say what he did!

There are so many boats fishing for starfish recently, and people come and go, and the question is, "I saw it by chance."

Professor Li had no doubts either.

"What you are talking about is the self-cutting behavior of starfish. It is a common body reaction in predatory relationships. Broken wrists will grow back later," Professor Li said.

"You mean, it felt threatened by predators, so it cut off one of its wrists? It's similar to the way a gecko cuts off its tail, sacrificing part of it to preserve the whole." Feng Yi asked.

"Absolutely. But if in the sea, in addition to predators, they will also behave like this when they feel the pressure from the external environment, such as rising water temperature, environmental pollution, parasites or microbial infections, etc. that make them

When the body is damaged, self-cut behavior will occur.”

"That's it."

Feng Yi wondered whether the starfish that cut itself in his hand was "fear engraved in DNA" or was it due to other reasons?

Is it accidental or inevitable?

It is not difficult to verify.

Catch a few more.
Chapter completed!