标 题: PHOTO OF THE DAY (Febuary,2,2004)
发信站: BBS 听涛站 (Tue Feb 3 23:31:52 2004)
WHERE: Hudson Bay, Canada
WHEN: 1996
PHOTOGRAPHER: Flip Nicklin
"Most [female polar bears] keep their young [such as the cub at the bottom in
this picture] with them for two and a half years, but many Hudson Bay mothers
wean their cubs a year earlier. That allows them to breed every two years ins
tead of the usual three. Perhaps the large number of seals at Hudson Bay influ
ences this fecundity. The abundance of seal carcasses left on the ice might ma
ke it possible for young bears to scavenge at an earlier age and become indepe
ndent sooner."
(Text from "Polar Bears, Stalkers of the High Arctic," January 1998, National
Geographic magazine)
(Photograph shot on assignment for, but not published in, "Polar Bears, Stalke
rs of the High Arctic," January 1998, National Geographic magazine)
※ 来源:·BBS 听涛站 http://tingtao.net·[FROM: 61.49.197.216]
此主题相关图片如下：ng0202.jpg (152254 字节)