英文回答：
Hibernate is a fascinating phenomenon that occurs in various animal species. It is a state of deep sleep or dormancy that enables animals to conserve energy during harsh winter conditions when food is scarce. When spring arrives and the weather becomes milder, hibernating animals gradually awaken from their slumber.
One example of a hibernating animal is the bear. Bears are known to enter a state of hibernation during the winter months. They find a safe and cozy den, usually in a cave or a hollow tree, and settle down for a long sleep. During this time, their metabolic rate decreases significantly, allowing them to survive without food or water for several months. When spring arrives and food becomes more abundant, bears emerge from their dens, ready to explore their surroundings and replenish their energy reserves.
Another example of a hibernating animal is the ground squirrel. These small rodents prepa
re for hibernation by storing food in their burrows. They then retreat to their underground chambers and enter a state of torpor, where their body temperature drops and their heart rate slows down. Ground squirrels can remain in this state for several months, conserving energy until the arrival of spring. Once the weather warms up, they wake up from their slumber and resume their normal activities.
中文回答：
冬眠动物 一个冬眠动物的例子是熊。熊在冬季进入冬眠状态是众所周知的。它们到一个安全舒适的巢穴，通常是在洞穴或空心树中，然后安顿下来进入长时间的睡眠。在这段时间里，它们的新陈代谢率显著降低，使它们能够在数月内没有食物或水的情况下存活。当春天到来，食物变得更加丰富时，熊从它们的巢穴中出来，准备探索周围的环境并补充能量储备。
另一个冬眠动物的例子是土松鼠。这些小型啮齿动物通过在它们的洞穴中储存食物来准备冬眠。然后它们退回到地下的洞穴中，进入一种冷却状态，体温下降，心率减慢。土松鼠可以在这种状态下保持数月，节约能量，直到春天到来。一旦天气变暖，它们从沉睡中醒来，恢复正常活动。
In conclusion, hibernating animals such as bears and ground squirrels have the remarkable ability to survive harsh winter conditions by entering a state of deep sleep or dormancy. This allows them to conserve energy and survive without food or water for extended periods of time. When spring arrives and the weather becomes milder, these animals awaken from their slumber, ready to embrace the new season and continue their lives. Hibernate is truly a fascinating natural phenomenon that showcases the incredible adaptations of animals to their environments.
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