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Polar bears evolved from brown bears, but not necessarily the grizzly brown bear.
Bears, in the taxonomic family of Ursidae, split off from other Carnivorans about 38 million years ago. Then the Ursinae subfamily originated around 4.2 million years ago. According to both fossil and DNA evidence, the polar bear split from the grouping of the brown bear, Ursus arctos, roughly 200,000 years ago. This is thought to have happened due to their isolation during a period of glaciation in the Pleistocene period.
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∙ 12y ago
Wiki User
∙ 12y agoPolar bears diverged from brown bears but not necessarily the grizzly brown bear.
Bears, in the taxonomic family of Ursidae, split off from other Carnivorans about 38 million years ago. Then the Ursinae subfamily originated around 4.2 million years ago. According to both fossil and DNA evidence, the polar bear split from the grouping of the brown bear, Ursus arctos, roughly 200,000 years ago. This is thought to have happened due to their isolation during a period of glaciation in the Pleistocene period.
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Is the grizzly bear bigger than the polar bear?
No, because most polar bears are taller and heavier than grizzly bears.
Are grizzly bears the king of the bears?
Not exactly. Polar bears are the largest species of bear in the world, making it "King of bears," not a grizzly.
Could polar bears possibly move to Alaska and live like grizzly bears?
well kind of they formed from grizzly bears but would find it hard to live like grizzly bears
Why do polar bears have smaller ears than grizzly bears?
because a polar bear ears are not very useful but a grizzly bears ears are very important fir him
Barbary lion or polar bear which is stronger?
Of course the polar bear is stronger. Polar bears are bigger and stronger than grizzly bears, while grizzly bears are stronger and larger than lions.
What animals are strong-willed?
\Polar bears, Tigers, Grizzly bears.
How do grizzly bears affect the lives of polar bears?
Grizzly bears don't affect the life of polar bears. They are just the same type of species living in a different area . They have no effect on each other.
Do both grizzly and polar bears live in the Arctic?
No. Only polar bears live in the Arctic.
Is a grizzly bigger than a polar bear?
No, the polar bear is the largest bear.
Which bears cant climb trees?
Grizzly bears, brown/Kodiak bears and polar bears.
What is the grizzly bear related to?
Polar bears, black bears, brown bears, etc.
How many bear species in Canada?
Brown bears, black bears ,Grizzly bearsActually, grizzly bears are brown bears (brown bears is the species name, and it includes Kodiak, Russian Brown Bears and Grizzlies among others). Also, there are Polar Bears in Canada as well. So the answer is Brown (Grizzly and Kodiak), Black, and Polar bears.brown grizzly and kodiak bears,black,and polar bears live in Canada
