Of the Eight Known Polar Bear-Grizzly Bear Hybrids, All of Them are Descended from the Same Mother Polar Bear.
As the world warms and Arctic sea ice melts, starving polar bears are forced further south, where they meet grizzlies, whose ranges are expanding northward. With increased contact between the two species comes more mating, and thus more sightings of their hybrid offspring. But did you know polar bear and grizzly bear hybrids all came […]