北极的"居民"是如何过冬的?

Arctic Hare

Shortened ears and thick, white fur are among the physical traits that arctic hares have adapted to survive in the harsh, frozen tundra.

北极兔

为了适应北极的冻土和艰苦的生活环境，北极兔进化出了短耳朵和厚厚的雪白色皮毛。