这是一年中北极熊从冬季巢穴中出来的时候。在今天的照片中，这些可爱的幼崽是他们幼年生活中第一次向外窥视。从技术上讲，北极熊不会冬眠，但在秋天，怀孕的雌性北极熊会在雪地里挖一个产房（尽管在某些地区它会在泥炭土下）。在她的小巢穴里，熊进入休眠状态，几乎一直在睡觉，直到她分娩，通常在11月到2月之间。然后，到了春天，她会把自己挖出来，和她刚出生的幼崽们一起出现。北极熊幼崽在一直与母亲生活差不多两年，不断学习生存技能。照片中的幼崽生活在加拿大马尼托巴省的瓦普斯克国家公园，这里被称为“世界北极熊之都”。这里是在自然环境中看到北极熊的最佳地点之一，尤其是当它们在秋天搬到那里时，等待哈德逊湾结冰，然后出发猎捕海豹。
Anybody out there?
This is the time of year that polar bears emerge from their winter dens. In today's photo, these adorable cubs are peeking out for the first time in their young lives. Polar bears don't technically hibernate, but in fall, a pregnant female polar bear will dig a maternity den in the snow (although in some areas it'll be under the peat soil). While in her small den, the bear enters a dormant state, sleeping nearly all the time, until she gives birth, usually between November and February. Then, in spring she'll dig herself out and emerge with her recently arrived cubs. Polar bear cubs stay with their mother for about two years as they learn to survive in the Arctic.
The cubs in this photo are in Wapusk National Park in Manitoba, Canada, which is known as the 'Polar Bear Capital of the World.' It's one of the best places to see polar bears in their natural environment—especially when they move there in the fall, waiting for Hudson Bay to freeze before heading out to hunt for seals.
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