大多数熊的眼睛有圆形的瞳孔。
它的正面和背面都有熊本熊的面孔。
北极是约两万五千只北极熊的家园。
她再也不回三只熊的家了。
这只熊的行为异常，可能是因为饥饿吧。
这是一只熊的房子。
根据这篇文章，是什么没有减少北极熊的数量？
What doesn't bring down the number of polar bears according to this passage?
科学家们乘坐直升飞机，飞过北极熊的栖息地上空。
Scientists fly in a helicopter, over the places where polar bears live.
科学家们想要了解关于北极熊的一切，以及如何才能帮助它们。
Scientists want to learn all they can about polar bears and how they can help them.
有人认为，如果环境能够支持熊的繁殖，那么就有足够的食物资源来支持人类。
It has been suggested that if the environment were capable of supporting breeding populations of bears, there would have been enough food resources to support humans.
发布在脸书上的一段有关这只熊的视频中，它看起来比较健康，行动也很迅速。
In a video posted to Facebook featuring the bear, it appeared to be in relatively good health and was moving quickly.
在奇尔库特小道上，加拿大公园看守人麦克指着一大堆棕色的粪便：“灰熊的粪便。”
Up on the Chilkoot trail, Mike, a ranger for Parks Canada, pointed at a large brown heap of dung: "Grizzly scat."
在《薄冰之上》一书中，作家兼插画家理查·埃利斯描绘了北极图标，北极熊的自然史。
In ''On Thin Ice'', Richard Ellis, a writer and illustrator, paints a natural history of the icon of the north, the polar bear.
一天，动物园里的一些工作人员注意到一只黑猫在熊的笼子里，两只动物正在和平地玩耍。
One day, some workers in the zoo noticed a black cat was in the bear's cage, and the two animals were playing together peacefully.
尽管北极熊的哀鸣以及许多图表数据表明碳排放飙升，但大多数人很难相信全球变暖会对其产生个人影响。
Despite mournful polar bears and charts showing carbon emissions soaring, most people find it hard to believe that global warming will affect them personally.
生物学家们长期认为，两类鳍脚亚目动物，即海狮和海象，都是从一种陆地上的类似于熊的动物繁衍而来的。
Biologists have long maintained that two groups of pinnipeds, sea lions and walruses, are descended from response to similar environmental pressures.
无论是在动画片中北极熊的手里，还是在圣诞老人的手里，几乎所有可口可乐的广告里都有一样东西：标志性的玻璃瓶。
Whether it's in the hands of animated polar bears or Santa Claus, there's one thing you'll find in nearly all ads for Coca-Cola: the characteristic glass bottle.
近年来，努纳武特的一些因纽特人报告说，在人类居住区周围看到北极熊的情况有所增加，这使人们认为其数量在增加。
In recent years some Inuit people in Nunavut have reported increases in bear sightings around human settlements, leading to a belief that populations are increasing.
这个堪察加半岛湖是数百只熊的家园，游客们可以看到它们在野生鲑鱼洄游期间尽情享用大餐，这是地球上最大型的鲑鱼洄游之一。
This Kamchatka Peninsula lake is home to hundreds of bears, and visitors can see them tuck into a feast during the wild salmon run, one of Earth's greatest.
科学家们的解释则是，有些北极熊由于饥饿可能会聚集在人类居住区周围。这就导致人们产生一种错觉，误认为北极熊的数量比其实有数量要多。
Scientists have responded by noting that hungry bears may be congregating around human settlements, leading to the illusion that populations are higher than they actually are.
相反，它们不是在北极熊的颅腔上发育的。
On the contrary, they are not developed on the endocast of the polar bear.
埃米尔·巴赫勒在德拉琴洛克洞穴中发现了一个巨大的石头箱子，里面装满了洞穴熊的头骨。
Emil Bachler discovered a large stone chest filled with cave bear skulls in the Drachenloch Cave.
回家路上，大家又说起了熊的事情。
公园管理员担心游客和灰熊的安全。
Park rangers are concerned for the safety of the tourists and the grizzlies alike.
现在，让我们看看你的玩具熊的牙齿。
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