http://www.cbc.ca/technology/s ... ience-arctic-hybrids.html

Quote :

The two grizzly-polar bear hybrids discovered in Canada's North in recent years may be the tip of the iceberg, warn a trio of U.S. scientists who say the bears are a sign that Arctic biodiversity is at risk. Pointing to other Arctic hybrids – an apparent bowhead-right whale photographed in the Bering Sea in 2009, a suspected narwhal-beluga found west of Greenland in the late 1980s, as well as various confirmed hybrid porpoises and seals – they argue governments must manage hybrids before interbreeding leads to the extinction of rare species.

isn't this a little much to be concerning ourselves with?

Soon.

^ LoL

Quote :

American hunter Jim Martell shot this hybrid polar-grizzly bear near Nelson Head on southern Banks Island on April 16, 2006.

I would say people going out there and blasting at them with firearms would be a more immediate risk.

more importantly... are these actually species if they can interbreed?

Quote from Shotglass :

more importantly... are these actually species if they can interbreed?

Yes, they are. A species is arbitrary, and just used to distinguish between organisms. An example is the mule, which belongs to two species, Equus asinus and Equus caballus, as it is a cross between a horse and a donkey.

If bears are finding ways to continue the existance of their genus then hooray for them why do environmentalists always feel something is wrong? God forbid there environmentalists around when the prehistoric mammals were evolving and mixing and going extinct left and right, we'd be dodging sabre toothed cats on the way to the mall.