Most closely related to the brown bear.
I'm guessing that is the panda bear.
Another Answer:
Grizzly and Brown Bears.
Panda are not bears. They are from the Raccoon family.
The closest relative to a polar bear is a brown.
The American black bear and Asiatic (or Asian) black bear are the closest relatives to each other. The Sun Bear is also a close relative to either species.
Carolyn Girdwood
Most closely related to the brown bear.
A grizzley bear?
There are a number of animals that the polar bear is related to. Some of the common ones include panda, black bears, sloth bears and so many others. The brown bear is the polar bear's closest relative.
Grizzly bear.
The closest relative of the Giant Panda is known as the Spectacled Bear. It is a small bear native to South America.
Polar Bear.
Polar Bear.
Bears are from the family ursidae, while dogs are from canidae, making their closest relative the dingo.
Carolyn Girdwood
Bear
The polar bear, grizzly bear, and black bear. Though some may think that a brown bear and a polar bear can have babies together that has only happen between a Grizzly bear and a polar bear. Note: Grizzly's and Brown bears are different species of bear.
The DNA evidence of polar bears can be derived from the DNA of a polar bear, which could be obtained from any cell produced by a polar bear. This polar bear DNA is unique to polar bears, and can be used identify a polar bear from other bears, and animals, and plants, and people. The polar bear is a very close relative of the brown bear. The two species diverged around 80,000 years ago. They sometimes hybridize.
Grizzly bears. They share some habitat areas. Eat alot of the same things, and even cross-breed occasionally. Grizzlies can also swim, but they can't tolerate the frigid waters as well. Their closer habitat companions, seals, are also mammals that share habitat areas. Both hunt for fish, but the seal is also a prey animal for the Polar bear.Grizzlies and Polar Bears interbreed. That makes them pretty closely related. See linkGrizzlies and Polar Bears interbreed. That makes them pretty closely related. See link