All polar bears alive today are descended from a female brown bear that most likely hailed not from Alaska, as widely presumed, but from Ireland, scientists said. The discovery, reported online ...

At some point, probably after around 125,000 years ago, she said, the polar bear lineage leading to Bruno and the brown bear lineage leading to all living brown bears crossed paths and hybridized. As ...

Genomes analyzed in a new study on bears include that of this bear, pictured here in 1995 on Alaska's North Slope. Scientists had wondered if this bear might be a brown bear-polar bear hybrid, but the ...

A 115,000-to-130,000-year-old polar bear jawbone. Photo: Karsten Sund, Natural History Museum (NHM), University of Oslo Polar bears and brown bears diverged as species between 1.3 million and 1.6 ...

Polar Bear vs. Grizzly Bear: Key Facts Polar bears are larger than grizzly bears on average, but the largest brown bears are nearly as big as the largest polar bears.

Internet users have dubbed him the "unluckiest bear in the world," making Joey, a bear with unusual coloring, the stuff of online urban legend. As the story goes, this "albino brown bear ...

By comparing the genomes of 119 polar bears, 135 brown bears and two fossilized polar bears, the researchers found differences going back approximately 70,000 years, suggesting that polar bears ...

Polar bears are well known for their snowy white coats, while Kodiak bears have shaggy brown fur. The Kodiak bear appears to ...

Despite the name, Bruno was a female bear that lived somewhere between 100,000 and 70,000 years ago and its genome has helped scientists narrow in on this brown bear-polar bear divergence.

The polar bear is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding landmasses. A boar (adult male ...

The polar bear rivals the Alaska brown bear as the world’s largest land predator, according to the National Wildlife Federation. Among those insights, according to the same source, is this ...

Polar bears and brown bears have been mating in Russia and producing hybrid cubs that are more resilient to climate change.. Evidence of the species, known as 'Brolar bears' or 'Pizzlies', has ...