In the world, there are many varieties of crabs, the known species of humans are as high as about 4700 species, and China is also one of the main distribution areas of crabs, but it is eaten by everyone - in fact, there are mainly four kinds of crabs, namely three-wart pike crab, far sea pike crab, blue crab, Chinese river crab. The crabs mainly produced in China are what we often call "hairy crabs", and its scientific name is called "Chinese river crabs", which are mainly mass produced in the Yangtze River region of China.
Of course, the price of hairy crabs is also relatively expensive, and the cheapest ones are tens of yuan, so it is considered to be "the most expensive product in the dish". But then again, basically all are artificially farmed, and wild hairy crabs are basically invisible, if you see hairy crabs in the wild, it has long become everyone's "plate food". From the invasive species of crayfish, we all know that it is in short supply, the price is still expensive, and the hairy crab is to a certain extent - the degree of deliciousness exceeds that of the crayfish, so it cannot be seen in the wild at all, which also has the problem of artificial breeding.
However, it should be noted here that not all crabs can be eaten, and eating them may also be poisoned, so everyone's understanding of crabs needs to be improved. This is not, a piece of news about "australia more than 50 million red crabs migrating, everywhere they go full of red eyes" caused everyone to discuss, indeed, this is tens of millions of crabs, so many people see this video, are hot discussions, can not eat, let's take a look at the situation.
When we think of Australia, we all think of news such as camel flooding, wild boar flooding, etc. Indeed, Australia's biological flooding is relatively serious, which may be related to the local ecosystem, and many species are also alien species, so it is normal that there is a flood situation, and for this migration of more than 50 million red crabs, it is not a strange thing, this scene will be staged at this time of year, and it is also known as one of the largest animal migrations on the earth.
It is indeed a bit much, more than 50 million red crabs migrate, so it has also triggered many people to shoot the spectacular picture of the migration of red crabs. Moreover, for the migration of red crabs, the local government also spent several months to build crab bridges and temporary barriers for them to ensure the safety of crabs. According to Dr Deto of Australia, the numbers have changed a lot this year, since 2005, that is, once in 16 years, the region has never seen so many migratory red crabs.
So, it's true that there may be flooding again, too many, red crabs flocking through roads, bridges, rocks and streams, and the whole area is red, so it's quite shocking. Of course, in this case, because there are too many red crabs, there are also millions of red crabs that are crushed to death every year. And the number of red crabs that appear every year is still increasing, but the overall number has not decreased, so we say that it may flood in Australia again.
Red crab is also known as "land red crab, red earth crab, Australian red crab", its scientific name is Christmas Island red crab, this red crab is also relatively large, the carapace up to 116 mm long, weighing 415-480 grams. When running on the ground, many people also compare it to "roasted red lobster", the distribution range of this red crab is not extensive, mainly distributed in the Indian Ocean On Christmas Island and Cocoa Island is a kind of land crab.
Because these islands belong to the state surrounded by the sea, so the red crab to survive, must also become part of the food chain on the island, they mainly live on the leaves and flowers that plants fall, but also eat fruits, flowers and seedlings, and occasionally may eat other dead crabs and birds, African large snails, etc. From here, you can also see that there is actually a lot of food that can be eaten, so it is basically impossible to go extinct and die.
The life span of the red crab is also relatively long, the average lifespan is 35 years, and there is almost no competition on the island, so the population will definitely expand, and in the future, perhaps above the island, you can see the entire island become a red state, which is the case of the red crab.
So many red crabs, can you eat them? Stir-fried, under the wine "refreshing"? Indeed, although the number of red crabs is large, but it is really not edible, in the Australian red crab, there is a poisonous substance called formic acid, which can be found in the secretions of bees, certain ants and caterpillars, however, this formic acid is a toxic substance, if it is absorbed into the body, it will damage the gastric mucosa.
If you are not careful, other problems may also aggravate the body. Although it has been studied to remove toxins from the red crab, it is not recommended to cook at home, otherwise it may lead to food poisoning. Therefore, it is not recommended to eat red crab, if you do not handle it, it will definitely be unblessed.
Red crab is a species that is best not to eat, mainly because the body contains toxins, which requires vigilance. At the same time, from the perspective of the ecosystem, no matter where we are, we should not eat the main organisms, most of the organisms have a supporting role in the ecosystem, if people do not protect them, the ecosystem may have a serious collapse, so that not only the impact of ecosystem collapse is so simple, and may even trigger a chain effect.
Lead to the disappearance of more biological populations, so that we humans living in such an environment, will inevitably be "counterattacked" by nature, so protect the ecosystem. Only when the earth is protected by the environment can we see more organisms appear and the ecosystem will be more stable.