Tiếp theo

Female Polar Bears Need an Extra 220 Lbs. for Pregnancy

1,341 Lượt xem· 10/19/23
Smithsonian Channel
Smithsonian Channel
1,606 Người đăng ký
1,606
Trong Discovery

During seal hunting season, a female polar bear strives to put on up to 300 pounds of fat. That weight gain is a necessity - without it, her body won t allow her to get pregnant. From the...

Cho xem nhiều hơn

 0 Bình luận sort   Sắp xếp theo


Tiếp theo