案例简介：视频 @ bertiegregory/这些小北极熊幼崽不会让他们的母亲睡觉!与北美其他种类的熊不同，雄性北极熊不会在冬季进食。雌性北极熊在冬天做巢穴，以便生下幼崽。这个特殊的家庭属于特殊的人群。哈德逊湾附近的雌性北极熊经历了所有哺乳动物中最长的禁食期之一。随着海冰 (他们的狩猎场) 在7月周围融化，它们进入陆地。在9月/10月，他们前往内陆建造一个巢穴。在2月/3月中，它们带着新的幼崽冲出巢穴，然后出海 (冬天结冰) 捕猎海豹。因此，在他们在陆地上的八个月里，母亲必须没有一顿美餐，即使她怀孕并哺乳新幼崽也是如此。由于这个禁食期将熊推向了极限，因此北极温度的任何升高以及无冰期的增加都将对雌性饲养新幼崽的能力产生重大影响。跟随 @ bertiegregory进行更多野生动物冒险。# 野生动物 # 熊 # 极地 # 冰 # 北极 # 可爱的动物

案例简介：Video by @bertiegregory / These tiny polar bear cubs wouldn’t let their mother sleep! Unlike other species of bear in North America, male polar bears do not den in winter time. Female polar bears do den in winter in order to give birth to cubs. This particular family belongs to a special population. Female polar bears that den near the Hudson Bay go through one of the longest fasting periods of any mammal. As the sea ice (their hunting ground) melts around July, they come onto land. In September/October they head further inland to build a den. In February/March, they break out of the den with their new cubs, then head out to sea (frozen solid over the winter) to hunt seals. So for the eight months they are on land, the mother must go without a good meal, even while she is pregnant and suckling new cubs. As this fasting period is pushing the bears to their limit, any increase in Arctic temperature and therefore an increase in the ice-free period will have dramatic consequences on the female’s ability to raise new cubs. Follow @bertiegregory for more wildlife adventures. #wildlife #animals #bears #polar #ice #arctic #cuteanimals

国家地理 - Video by @bertiegregory / These tiny polar bear cubs wouldn’t let their mother sleep! Unlike other species of bear in Nor

案例简介：视频 @ bertiegregory/这些小北极熊幼崽不会让他们的母亲睡觉!与北美其他种类的熊不同，雄性北极熊不会在冬季进食。雌性北极熊在冬天做巢穴，以便生下幼崽。这个特殊的家庭属于特殊的人群。哈德逊湾附近的雌性北极熊经历了所有哺乳动物中最长的禁食期之一。随着海冰 (他们的狩猎场) 在7月周围融化，它们进入陆地。在9月/10月，他们前往内陆建造一个巢穴。在2月/3月中，它们带着新的幼崽冲出巢穴，然后出海 (冬天结冰) 捕猎海豹。因此，在他们在陆地上的八个月里，母亲必须没有一顿美餐，即使她怀孕并哺乳新幼崽也是如此。由于这个禁食期将熊推向了极限，因此北极温度的任何升高以及无冰期的增加都将对雌性饲养新幼崽的能力产生重大影响。跟随 @ bertiegregory进行更多野生动物冒险。# 野生动物 # 熊 # 极地 # 冰 # 北极 # 可爱的动物

国家地理 - Video by @bertiegregory / These tiny polar bear cubs wouldn’t let their mother sleep! Unlike other species of bear in Nor

案例简介：Video by @bertiegregory / These tiny polar bear cubs wouldn’t let their mother sleep! Unlike other species of bear in North America, male polar bears do not den in winter time. Female polar bears do den in winter in order to give birth to cubs. This particular family belongs to a special population. Female polar bears that den near the Hudson Bay go through one of the longest fasting periods of any mammal. As the sea ice (their hunting ground) melts around July, they come onto land. In September/October they head further inland to build a den. In February/March, they break out of the den with their new cubs, then head out to sea (frozen solid over the winter) to hunt seals. So for the eight months they are on land, the mother must go without a good meal, even while she is pregnant and suckling new cubs. As this fasting period is pushing the bears to their limit, any increase in Arctic temperature and therefore an increase in the ice-free period will have dramatic consequences on the female’s ability to raise new cubs. Follow @bertiegregory for more wildlife adventures. #wildlife #animals #bears #polar #ice #arctic #cuteanimals

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国家地理 - Video by @bertiegregory / These tiny polar bear cubs wouldn’t let their mother sleep! Unlike other species of bear in Nor

暂无简介