... was a polar bear. When taking a closer look, the bear was brownish white and had some other feathers not typical of polar bears. Genetic tests proved it was a hybrid, the offspring of a grizzly and a polar bear mating. Your friend says that this is evidence that polar bears and grizzly are the same spices. Do you agree? What other information might you want to know before you agree or disagree ?
A hunter came across a bear in the Canadian Arctic and shot it down. The hunter first thought this?
- Posted:
- 3+ months ago by Richard111
- Topics:
- bear, polar, typical
Details:
Answers (1)
Only similar species, those with a common heritage, can interbreed. It has been well established and well documented that polar bears and other bear species can interbreed. Current research is pinpointing a change in colouration of polar bears as they begin to habitually spend more time off the ice due to global warming and the collapse of the ice shelves. Changing from white to brown hues, it's supposed that the yellow white of polar bears is merely a shortlived adaption to cold weather living and a reversal of the adaption is more common than was previously known. Bears have been around for hundreds of thousands of years and ice ages has come and gone several times in that many years. Presumably the adaption has come and gone too...