✔ 最佳答案
人們都知道北極熊是冰雪世界的“王者”,身為游泳高手的它們怎麽會被淹死呢?
As most people would know that the Polar Bear is the King of the ice world, so how could an expert swimmer die of drowning?
原來,隨著全球平均氣溫的升高,北極周圍冰層融化速度加快,冰層變薄,北極熊的地盤因此不斷受到“侵蝕”.
The truth is that as the temperature of the risen globally, the Arctic ice layers melted at an accelerated rate. The ice layers become thinner and thinner as a result Polar bears' turf is under constant invasion.
同時,全球暖化,還會縮短北極熊的捕獵期。因為北極熊的主要食物是生活在沿海冰層下的海豹,他們覓食的方式是沿著浮冰走到冰層上海豹的呼吸孔旁邊守候,海豹一露頭呼吸新鮮空氣,北極熊就猛撲過去,將之捕殺。但是因為冰層的融化承載北極熊沉重的身軀的冰塊亦因此而減少。
At the same time, global warming also shorten the hunting season of the Polar bears. Because Polar bears' major food source is seals that live around ocean of the ice layer, their hunting style is walking along the floating ice block to wait next to seals' breathing hole of the ice layers. When the seal surfaces to catch his breathe, the Polar bear will pounce quickly to catch it. But because the melting of the ice layers, it is harder and harder to find ones that can support a Polar bear's weight.
弄成找尋食物越來越困難。很多時候,這就迫使北極熊不得不到離海岸去到更遠的地方去覓食,為了覓食,它們不得不在海裏游泳大約100公里去找尋食物。
The melting of ice layers make hunting for food extra difficult. Many times, it forces Polar bears to go further away from the shore to find food. They have to swim about 100 kilometers in order to find food.
參考: myself, 希望可以幫倒你.