Why hasn t the sunfish, a very survivable marine creature, gone extinct yet?

Here we need to realize that it is extremely difficult to make a creature extinct. Don't look at the list of so many endangered species now, but in fact, the reason why they are where they are today is that they have evolved over millions of years. However, due to the rapid expansion of human living range, the living space of many species has been suppressed.

So that's why some endangered species have been reported everywhere in recent years, because our human production activities are going extinct. But in nature, it is very difficult to make a species extinct if it is only based on the simple food chain. <>

Because in the long process of evolution, they have formed a dynamic equilibrium, and there are enough in each ecological environment to maintain the stability of various groups. For example, the sunfish is actually a very stupid fish, with a very large head but almost no tail. This has led to his top-heavy problem, and his ability to escape is almost zero.

It stands to reason that in such a situation, any natural predator can bully him, but we can find that there are very few fish in the ocean that prey on it. <>

This is mainly because although he runs slowly, because the skin thickness of the sunfish is 7 centimeters when he grows up, it not only tastes bad when biting, but also does not have any nutrients. So in the ocean, even if some creatures want to prey on it, they don't bother to bother with it, after all, don't look at its size, but there are not many things that can eat in its mouth. In general, seals only hunt sunfish when they are very hungry.

In addition to being relatively unpalatable, the biggest ability of the sunfish to survive so far actually comes from his super reproductive ability. Although most of them will be eaten by natural enemies, they can't bear the large number of people, and the hatched ones can always grow into large sunfish. Once the sunfish enters the mature stage, there are almost no natural predators, and their food is relatively extensive, so they can survive leisurely.

Maybe it's because they're more able to survive in the ocean than in other places, so it's not easy for them to become extinct in that place, because it's their own territory.

Because the sunfish has few natural predators and its reproductive ability is not weak, it will not become extinct although it has poor survivability.

The fins of the sunfish are very small, the swimming speed is not fast, the possibility of catching is very large, but it is not extinct, the reason is that they have amazing reproductive ability, the frequency of their spawning is not only higher than that of ordinary fish, but also the number of spawns is also large, about 300 million at a time, so that even if some sunfish are caught, and some die halfway, there will be offspring to grow to the reproductive period, so that there are new offspring.

The sunfish is indeed a wonderful, it is very small when it was born, and there is no protective ability, even if it grows up, there is no life-saving ability, but it has not been extinct in the ocean of the weak and the strong, it is really strange, although many animals have no attack power, but they do have the means of self-preservation, like antelopes, can climb to cliffs, monkeys can climb trees, ordinary fish swim fast, these are a bit special, so basically will not be extinct, but sunfish are actually not related to these, Without these specialties, it is not extinct because it has other characteristics<>

1. Strong reproductive ability.

The reproductive ability of the sunfish is particularly strong, an adult sunfish is three meters long, and it can produce about 300 million eggs at a time, this number is simply terrifying, but from birth to adulthood, so many sunfish, only a few dozen can grow to adulthood, it can be said that the reason why it is not extinct is that it has a lot to do with being able to spawn. This base is too large. There is also a circle of spines on the body of the little sunfish, which is a bit like a pufferfish, so it can also avoid some predation.

2. The internal organs of the sunfish have a certain toxicity.

Some scientists have done a certain test on the internal organs of the sunfish, and found that their internal organs have many toxins, these toxins are the same as the toxins in the body of the pufferfish, this is because the sunfish will eat a kind of four-toothed pufferfish, which has a large amount of tetrodotoxin in the body, so if you eat more, the sunfish also contains a lot of this toxin. Therefore, many predators generally do not choose to eat this poisonous food. <>

3. The skin of the sunfish is very thick.

The sunfish has no ability to attack, swims very slowly, and has no ability to escape, but its skin is thick, as thick as seven centimeters. This defense is very strong. Except for some large carnivores with long teeth, it is difficult for ordinary fish to bite through the skin of the sunfish, but the kind of large sharks, killer whales do not eat sunfish as the main food, so the sunfish is relatively safe.

It is precisely because of these reasons that although the sunfish is very bulky, it is still not extinct. <>

Although this fish runs very slowly, but their skin thickness is 7 centimeters, the bite is not good, and there is no nutrition, don't look at his size is very large, but there are not many things that can eat in the mouth, and the biggest ability of the sunfish to survive to this day is super reproduction.

This fish is very reproductive, and can lay 300 million eggs at a time, which is quite a terrifying number.

Because they like to bask in the sun and are particularly reproductive, they have never been extinct.

Because there is no creature that preys on this sunfish, it has no natural predators, so it has never become extinct.

Because this fish has a very strong reproductive ability, the number of reproduction and the number of eaten are maintained in a delicate balance, and it will not be eaten and extinct.

Why hasn't the most cowardly fish in the ocean, the sunfish that is willing to be gnawed on as a "big cake", not extinct?