Focusing on Wildlife
How old are polar bears? Just when did these fearsome Arctic giants first appear?
The oldest known polar bear fossils hail from Svalbard and northern Norway and are dated at 115,000–130,000 years old, before the beginning of the last Ice Age. But some biologists think that polar bears diverged from brown bears as early as 600,000 years ago. According to research, polar bears evolved from brown bears that ventured onto […]
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