These types of bears interbred a lot more than we thought, indicates DNA of an effective 115,000-year-dated jawbone.
Experts have removed DNA of a good 115,000-year-old polar bear jawbone and you may used it to analyze the new genetic relationships ranging from these types of Snowy predators as well as their brownish sustain cousins (grizzlies provided). It discovered that polar carries intermixed with brown contains quite a good part across the millennia.
Polar sustain fossils was rare, and many of these which can be discover is apparently young.