Beaver is known as the architect of nature, stupid cute appearance under the fierce personality, the current human life has suffered its attack, the biggest damage until death, once known as the "animal kingdom bald head strong", perennial living in the cold temperate and subarctic forest of the river, can live in the land and water for a long time, once there were zoologists studied, beavers in 2 million years ago has existed, when they were still behemoths, but with the change of the times, now they are as small as rats, Perhaps it is some kind of disaster that makes the beaver slowly become smaller in order to survive better, after all, if it is such a large animal nibbling on the tree, then the forest is already full of trauma, they are naturally very adaptable to life in nature, but they are often buried because of stupidity, although they have the title of genius architect, but it is difficult to share for nature, what kind of animal is this? Let's take a look!
<h1 class="pgc-h-arrow-right" data-track="4" > the "hydraulic engineer" of nature, but it is difficult to distinguish</h1>
Beaver belongs to the rodent beaver genus of a semi-aquatic mammal, second only to capybara, the total number of American beavers, Eurasian beavers, distributed in the United States, Canada is more, in China's territory is relatively small, their heads are very short, the eyes are very small, the limbs are very short, but they have strong claws, which is conducive to the construction of the project.
If you see it, you will feel like a fattened version of the mouse, the tail is flat and long, help to swim in the water, their appearance also changes with the living environment, such as belarus beaver hair is light maroon, and living in the Sozh River Basin in Russia, the coat color is black brown, so if you see them, do not mistake, their facial features are also similar to marmots.
Beavers are generally 60-70 cm long, and have seen the longest up to 1 meter, weighing between 11-30 kg, relatively large animals, if you are worried about not being able to distinguish the appearance of the beaver, as long as you look at its tail can be clearly distinguished, like a paddle, become its swimming thruster, the fastest speed can reach 7 kilometers per hour.
Beavers are also vegetarians, naturally uninterested in meat, and feed mainly on some young shoots, bark, and rhizomes. They often Chinese New Year's Eve activities, generally appear at the water's edge, naturally poor vision, but the sense of smell and hearing are good, in the water is very flexible, will also run to land life, but once the danger is found, will immediately jump into the water to avoid, used to go together, when the nearby partners send a danger signal, the surrounding beavers will also jump directly into the water, will not appear again for a long time.
Beavers belong to the family as a group, often see monogamous adult males and females living with a number of cubs, polygamous beavers in nature, but this is rare, there is no fidelity in their world, when they find that the other half is dead or disappeared, then they will quickly find the next partner.
But fortunately, beaver parents will participate in the problem of offspring, when the spring comes, the beaver will mate, and then give birth to cubs at intervals of about 106 days, after the cub is born, the male will be responsible for the guarding of the territory, the female will be responsible for feeding the cubs, but fortunately, the cubs grow quickly, as long as 2 days can swim in the water, they are born to be swimmers!
Beaver vitality is also very tenacious, in the cub about 3 years old can reproduce again, a normal beaver can live to about 24 years old, once the beaver also encountered the danger of extinction, Europeans triumphantly their sachets and the tail that can swim freely in the water (said to have an aphrodisiac effect), so there was a large-scale massacre, until around 1900, there were only 1200 beavers left in the world, so it was listed as endangered, and then the people of the world found seriousness, and then protected, Under a century of hard work, the number of beavers has also increased to hundreds of thousands, from endangered to no-danger, thanks to the strong reproductive ability of beavers and the credit of human self-conscious compliance!
<h1 class="pgc-h-arrow-right" data-track="26" > the growth of beavers and becomes a hidden harm to humans</h1>
The number of beavers gradually increased, but their habitat also slowly expanded, as mentioned earlier, they have huge teeth, long-term will use their teeth to bite trees, there have been relevant statistics, beavers' front teeth can bite off a tree with a diameter of 40 cm in less than 2 hours, and these trees beavers will be used to build nests, most of their living areas are in some ponds, swamps, naturally good at water, resulting in their lives can not be separated from the water's edge.
Therefore, they generally build their own caves at the water's edge, put the opening of the cave under the water level, so as to ensure their own safety, will not be found by heaven and earth, if the water level drops at this time, then the beaver will feel unpressed in his heart, so he began to use his front teeth to cut wood, in order to make up for the inner sense of security.
In their lives, in addition to eating is logging, sometimes the trees in the living environment are gone, they will go to other places to find, they will dig canals when they can't move, sometimes up to hundreds of meters away, in order to let the trees reach their own cave places, really in order to make their homes safe enough, unscrupulous, worthy of being the second most talented architect after human beings.
Sometimes canals are dug not just to transport trees, but to connect two adjacent ponds, because they are naturally good at water, and only if the river is long enough, then their life will be more convenient, and once they find predators, they can quickly jump into the water to avoid.
And they are not like humans will use tools, when building embankments or digging canals, the biggest tool of the beaver is the front teeth, which can make the most acid-resistant, the tooth enamel is rich in iron, very hard, the end of the teeth is chiseled, can easily bite a tree. In addition, beavers' teeth are constantly growing, so they often nibble on things and don't have to worry about tooth wear.
This front tooth has advantages and disadvantages, for their life is the best tool, but they have long gnawed trees, but also caused great trouble to human life, the fall of some large trees also smashed the power lines and other facilities, and even some houses, so that human life has brought great economic losses.
And their front teeth are sharp enough to easily bite trees, then if humans encounter their attacks, it is also a huge injury, as early as 2012, two girls in Virginia were attacked by beavers, fortunately in the end in time to receive treatment, but the next year a belarusian male is not so lucky, because in the wild want to take better pictures, but unfortunately suffered from beaver attacks, biting off leg arteries, and eventually lost too much blood and died.
Although they look cute, but their attack power is very strong, so if you encounter it in the wild, avoid it as much as possible, because they have a strong sense of territory in the habitat, after all, they have invested so much cost, so they are not allowed to invade, for them, once they find the intruder, they will also work hard to fight, and in life, the beaver will also release its own smell in its own territory, in order to warn the intruder, there is a lord in this land!
<h1 class="pgc-h-arrow-right" data-track="44" > beavers continue to build dikes, pros and cons! </h1>
In fact, on the whole, although the existence of beavers has brought great influence to human life, but for other organisms, it is also a convenience, because long-term damming has turned many places into wetlands, which brings great benefits to some plants and fish, and studies have shown that the ponds built by beavers have nourished a lot of fish, and the population of some of them has been developed.
In a small stream in Sweden, the brown trout in the pond has become larger due to the continuous excavation of canals by beavers, and the same has happened in some fish in North America, among which trout, silver cod and red salmon are more pronounced, and they are relatively much larger than other river species.
Not only that, but the animals living on land have also been greatly facilitated, especially in the dry season, the ponds with beavers have increased a lot, and some animals in the forest will come here to drink water. For some humans, if the pond where the beaver exists too much water, it will help resist wildfires caused by climate change, and there are a large number of trees in the embankment built by the beaver, which also plays a filtering role in the water quality, and for some uncivilized people, when they abandon garbage in the river, they can also intercept it well through the dam built by the beaver.
For the existence of beavers, in 2011, a laboratory in Devonshire, England, also conducted a special study, as long as there is a wetland environment where beavers live, the carbon and nitrogen concentrations in them are significantly higher than those in the upper reaches of the pond, indicating that the ecological activities carried out by beavers contribute to soil erosion and purification of the environment.
However, the existence of beavers is also a great hazard, things are two-sided, and the levees built by humans also have the possibility of collapsing, not to mention wild beavers? Therefore, in terms of safety, it is also a hazard, as long as the rainfall is too large, then the embankment built by the beaver will not be able to withstand, directly leading to landslides, then it will cause downstream floods, which will bring huge losses to people living in the local area.
The biggest harm is that the beaver's tree-gnawing behavior is uncontrolled, the existence of the forest is because of the strong greening to make the air more fresh, but the beaver does not have this awareness, so it will chew off the trees in a large area, in response to this phenomenon, humans also have related measures, will be in the area where the beaver exists in a large area of barbed wire wrapped trees, so that you can drive away the beaver.
So the existence of the beaver actually has its own advantages and disadvantages, can not be more beneficial than harmful, there is actually a balance between the two, but human beings for its existence is still doing relevant guidance, although the current number has been greatly improved, but also can not let the beaver wanton, otherwise the ecological environment will encounter devastating damage, do you think?