北极熊（学名：Ursus maritimus意即"海熊"），又称为白熊或冰熊，是熊属的一个种，是北极地区的典型动物，可能是六十多万年前（也有不同的科学家认为是十五、二十、四十、甚至上百万年前），由灰熊演化出来。Polar bear (scientific name: Ursus maritimus means "sea bear"), also known as white bear or ice bear, is a species of the genus Ursus, a typical animal in the Arctic, probably more than 600,000 years ago (and different scientists think It was fifteen, twenty, forty, or even millions of years ago, and it evolved from the grizzly bear.
奔跑的鱼肝油
