It’s not just climate change that is endangering polar bears. The oil and gas industry has presented some threats of its own. Polar bears rely on their habitat in the Arctic to survive. With the oil and gas industry comes oil exploration which also introduces oil spills. If a polar bear...
But polar bears' fur has no pigment. The fur is hollow(中空的). If you look at the hollow hairs with a microscope(显微镜), you will find they are transparent(透明的). When polar bears stand in the sun, the hollow hairs reflect(反射) the sun's light. This makes them look white....
What color are polar bears? You might think they are white. But actually, this is not true. According to The Washington Post, although polar bears usually look white,their fur (毛) isn't white at all. And their skin(皮肤)is black!Our hair gets its color because of something called pig...
Polar bears have many adaptations to survival on the frozen ice caps of the Arctic. For starters, their fur is tremendously thick, and has a double... Learn more about this topic: Polar Bear Food Chain | Ecosystem, Importance & Threats ...
北极熊的介绍(Introduction of polar bear) 热度: 濒临灭绝的动物 热度: Polar Bears and what it means to be endangered Polar Bears • Scientific name: Ursus maritimus • Rank: Species • Higher classification: Ursus • Mass: 150 – 250 kg (Adult, Female), 350 – 700 kg (Adult, ...
Polar bears (北极熊) are very big white bears. They live in the Arctic Circle (北极圈) near the North Pole but they do not live at the South Pole. Polar bears live in the snow and ice. At the North Pole there is only snow ice and water. There is no land. Sometimes you're hart...
What colour are polar bears? You might think they are white. But actually, this is not true. According to The Washington Post. although polar bears usually look white.their fur(毛) isn't white at all. And their skin(皮肤) is black! Our hair gets its colour because of something called...
阅读以下文段,按要求作答You probably know of grizzly bears(大灰熊) and polar bears(北极熊),but what are“pizzlies”or“growler bears"? These are the terms for a grizzly bear and polar bear hybrid(杂交). Experts think these kinds of hybrids are becoming more and more common.They are calle...
Brown Bears are the strongest.They have the largest size and they weigh up from 500 kg to 850 kg.With life conditions and food changing,the weight changes. Polar Bears are the best swimmers of all kinds of bears.They live near the Arctic Ocean(北冰洋) and have...
What do bears eat? Most bears eat roots and leaves of plants. Some bears also eat meat when they can get it easily. Polar bears like eating meat from seals (海豹) . What do you know about baby bears? Black bears like sleeping in winter. And baby bears are usually born then. The ba...