Although their coat appears white, both their guard hairs and underfur are actually translucent.

虽然它们皮看起来白色，但它们外粗和下实际上都半透明。

About 70% of it is a fine underfur  that acts similar to down on birds.

其中大 70% 种细，其作用类似于鸟类身上。

The top layer repels water, and the underfur keeps their bodies toasty in the cold waters they call home.

顶防水，底让它们身体在它们称之为家冷水中保持温暖。

Their long coats come in bright  orange, reddish brown, and yellowish Their underfur is a light grey, their tails are  long, and their stomachs are large and swollen.

它们长有亮橙色、红棕色和淡黄色，底浅灰色，尾巴很长，肚子又大又肿。