In the Arctic, slightly larger than the lemmings herbivores is the hare, but the number far fewer than the lemmings. In the U.S. Mainland travel can often see flocks of wild rabbits running in the field. But walk through the grasslands in the Arctic, even if the car flew open and saw the number of rabbits is very limited, and the base to the number of foxes have not seen much. This is because the Arctic hare's reproductive capacity is not strong, due to climate and food constraints, they can annually produce a nest, litter, only 2 to 5, but its survival rate is relatively high, so their number is relatively stable , unlike the ups and downs like lemmings, to collectively commit suicide, of course, there is no well-known as lemmings.
In fact, the Arctic hare is not only distributed in the Arctic, in northern America and northern Europe, there are many, but various names, some place called Mountain or blue to avoid rabbits, and some places such as North America, is called the snowshoe rabbit, Because the rabbit is not only in North America arm large and following a long hair is still long, which helps reduce the pressure, even in the snow is not very easy to sink into running. The rabbit has a common feature, or call survival trick that can vary with the seasons to change their color, spring, summer and autumn is grayish brown in winter becomes one to clean, so not only easy to disguise, but White also Optical reflection can play a role, so difficult to find natural enemies. Fluffy hair around its body to capture some of the air, just as hollow as the walls, forming a layer of insulation to effectively prevent the heat loss, which spent the Arctic winter is essential. In addition, the Arctic hare there is a trick, that one son will be able to see things down the middle, which is necessary for survival. The youngest son of the rabbit eye is always closed after birth, to 12 days to open its eyes to see things. The shape-free Arctic is larger than rabbits, body fat, ears and hind legs are more? 5 to fool Bamyan Huan Yu Shu Bi ship system げ pry type meters larva meal wine container Ao Fan tomb?
Arctic taste delicious rabbit meat, fur valuable, so it has become the object of hunting. |