What are some species that were once thought to be endangered, but are actually in large numbers?

The previous person said quite a few vertebrates. I'm going to talk about the spineless one.

1 The glorious taro snail of the sea, which was first discovered in the 18th century, was sold at auction for three times as many as the woman in blue who read the letter because it was unique. However, it has been widely discovered since 1957. Now I don't know how many snails can buy a woman in blue.

Crested ibis, crested ibis, in the past few years, there are only a few wild ones, in recent months, a check, has been captive to more than 2,000. Relieved and helpless. If you want to take a picture as an avatar, it's all with foot rings.

Similar to small sun parrots, monk parrots, golden sun parrots, peony parrots and the like, breeding is the same as raising chickens, simple, easy, or foreign, but it is a national second-class protected animal.

I saw a news story before, I can't remember clearly, it seems that there is a special chameleon in the Philippines or Vietnam that was declared critically endangered, and then it was changed not long after, saying that it was too well hidden, and when it was counted, I didn't count ......

Pheasants have a tendency to spread throughout the city, and they are getting smaller and smaller.

I never felt like pandas were on the verge of extinction.

Yangcai arm beetle was said to be extinct earlier A specimen was photographed out** Now it has been found in many places There is a shell that I picked up in my house.

Mangshanyuan spearhead pit viper, the European and American pet snake markets sell quite a lot, and it is quite cheap, just spend two or three thousand yuan, which is cheaper than the high-end mutated toy snakes.

Wild boar, a national second-class protected animal.

Dogs, many people are desperately calling for dogs to be included in the list of protected animals.

There are also elk (four dislikes), Przewalski's horses, and small plain antelope.

The giant panda is now only a vulnerable species, but it is treated much better than the endangered and critically endangered functionally extinct species.

The water is huge, the flooding at home and abroad is about to become a disaster, and the country is also at the same level of protection as the giant panda and the Chinese alligator, and the wild population is so large that it is impossible to estimate.

Descending dragon wood is not a national protected plant.

Endangered crested ibis in Yangxian County, Shaanxi Province.

The eyelash corner guards the palace, which was once judged to be extinct and then discovered....Now it's rotten on the street, ordinary three or four hundred yuan.

This is all caused by environmental pollution, because after the environment is polluted, the living environment of some species is destroyed, and the number is getting smaller and smaller.

In addition to natural disasters, it is the cause of the survival of the fittest in the environment.

Probably because of natural selection, but also because of human activity.

1.Habitat alteration.

Habitat is decisive for a species, and as long as the habitat does not undergo drastic changes, many species can survive normally. However, due to the development of industry, the habitats of many animals and plants have undergone fundamental and rapid changes, whether it is from the food that animals depend on for their livelihood, or the soil and air on which plants depend, each factor is different from before, and this difference is the most fundamental and biggest factor that leads to the extinction of species. Therefore, protecting the environment is also protecting species diversity.

2.Rare animals are sold in the market, and the well-known fur is sometimes obtained by hunting rare animals, which is one of the reasons why many animals are endangered. In many of these markets, the sale of fur can bring high profits to sellers, and these high profits have given rise to the market for hunting and killing wild animals.

Driven by profits, every wild animal that can be made into fur is at risk of being killed. This market demand has driven the luxury industry to be unstable, but it has also brought a catastrophe to precious animals.

With man-made causes, man-made destruction of biological habitats, etc., natural causes, which refer to the extinction of species caused by natural disasters, etc., are mainly these two reasons, but generally several reasons act together at the same time, accelerating the extinction of species, and so on.

Man-made destruction of the environment. Animals tend to adapt to only one specific environment, and if the environment changes, such as deforestation, the animals that originally lived there will be in great danger. Contaminate.

Pollution is the most serious problem faced by wild animals, which destroys the environment on which water, air and other organisms depend, causes global climate change, and changes the original living environment of animals. Humans are the only species in the world that hunts other animals in large quantities for more than just food. They kill other animals in large numbers out of all kinds of greedy desires, even just for the sake of play.

Many animals were captured and raised as pets because of their cute appearance and docile temperament, and their wild counterparts gradually became extinct. The reckless introduction of new species from the outside world without sufficient consideration can sometimes greatly threaten native species, leading to the extinction of some species.