Although it was only briefly seen during the live webcast of its launch, the Fram2 mission's zero-gravity indicator was instantly recognizable. The first astronauts to enter a polar orbit around ...

In 2006, a white bear with patches of brown fur was shot by hunters in the Arctic. DNA tests confirmed what many suspected — it was a hybrid of a polar bear ... Red wolf and coyote hybrids ...

The hybrid, he said, is "definitely not" a sign of climate change. According to Paetkau, the genetics expert, grizzly and polar bears are the most closely related of the living bear species.