Previous Claims Of Interbreeding Due To Climate Change Exaggerated

One of the questions raised by the prospect of climate change is whether it could cause more species of animals to interbreed. Two species of flying squirrel have already produced mixed offspring and those have somehow been blamed on climate change, along with a hybrid polar bear and grizzly bear cub (known as a grolar bear, or a pizzly).  A paper in Nature Climate Change tallies the potential number of such pairings and across North and South America it estimates that only about 6 percent of closely related species whose ranges do not currently overlap are likely to come into contact by the end of this century.  read more

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