Kim Holmen of the Norwegian Polar Institute says some of his equipment could detect a cigarette at 2km.

挪威极地研究所的金·霍尔曼说，他管理的一些设备能够检测到2千米外一支点燃的香烟。

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They may be polar opposites, but something is attracting two species of minke whales, producing at least one hybrid offspring, a new study says.

一项新的研究显示，两种分别生活正在南北极的小须鲸不知为何相会并生出一种混血鲸，而且可能不止生出了一头。

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Some experts have suggested that the grizzlies might not stickaround long enough to face off with the polar bears, says Rockwell, buthe isn't buying that.

一些专家认为，灰熊或许不会在此逗留太久时间，与北极熊发生冲突。

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He says this piece of work is more about the melting ice of the Arctic than polar bears.

VOA: standard.2009.12.13

Canada also says polar bear parts coming from the country are taken in subsistence hunts, not by commercial operations.

CNN: World rejects new protections for polar bears

Canada, which has 16, 000 of the 20, 000 to 25, 000 polar bears left in the wild, says polar bear populations are not threatened and the animal does not meet the Appendix 1 criteria.

CNN: World rejects new protections for polar bears

The standard technique says, for example, that polar bears are just brown bears that happen to be white.

ECONOMIST: Species inflation