Other Natural Species Hybrids? - Other Natural Species Hybrids?

However, we still don’t know a ton about the reason behind bear interbreeding. Though, it is telling that the genetic research confirmed polar bears and grizzlies have been mating for thousands of years! While scientists hope to unravel that mystery through further study, there are other naturally occurring hybrid species that they can observe for answers. Photo Credit: webidrole/Pixabay

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