5-milion years ago instead of 600,000 or 130,000 years ago-
Recent interest in the relationship between polar bears and brown (grizzly) bears from which they emerged has been fueled by the observation of increasing numbers of polar bear – brown bear hybrids. Our recent article on this produced a number of comments, […]
Continue Reading →Is this likely response to global warming beneficial or detrimental?
In 2006, Jim Martell from Idaho, was hunting in the high arctic and shot the first confirmed grizzly bear – polar bear hybrid. There had been unconfirmed reports of rare hybrids in the past, but this was the first confirmed instance. That the two species of […]
Continue Reading →Arctic Melt Unnerves the Experts. By Andrew C. Revkin. New York Times.
The rate of melt was faster than almost all the model simulations had predicted. What about the near future?
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