Why we need to protect polar bears 3

5.Femalepolar bears are able to survive for about sixmonths without food.

雌性北极熊在没有食物的情况下可以存活大约六个月。

fasting  [ˈfɑːstɪŋ]  n.禁食

cub  [kʌb]  幼兽

This process results in about sixmonths of fasting, where the female bears have to keep themselves and theircubs alive,

TRUE

6.It was found that the bones of female polar bears were very weak when they came out of their dens in spring.

研究发现，雌性北极熊在春天从巢穴中出来时，骨骼非常脆弱。

Despite this, their bones remain strong and dense.

FALSE

7.The polar bear's mechanism for increasing bone density could also be used by people one day. [ˈmekənɪzəm]

有一天，人们也可以利用北极熊增加骨密度的机制。

If themechanism of bone remodelling in polar bears can be understood, many bedridden humans, and evenastronauts, could potentially benefit.

TRUE