Narwhals more at risk to Arctic warming than polar bears

By SETH BORENSTEIN, AP Science Writer, General Science / Biology

This photo released by the National Oceanic and Atmospheric Administration shows a pod of narwhals from northern Canada on Aug. 19, 2005. Although the polar bear has become an icon of global warming vulnerability, a new study found an Arctic mammal that may be even more at risk: the narwhal. The study found the whale with the long tusk ranked just ahead of the polar bear and nine other animals. (AP Photo/NOAA, Kristin Laidre)

(AP) -- The polar bear has become an icon of global warming vulnerability, but a new study found an Arctic mammal that may be even more at risk to climate change: the narwhal.

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