To a layperson, it’s footage of adorable polar bear cubs with their moms against the backdrop of endless Arctic snow. For researchers who study the animals, however, it’s a rare and incredibly ...

Although it was only briefly seen during the live webcast of its launch, the Fram2 mission's zero-gravity indicator was ...

Grizzly bears, for example, are a subspecies of brown bear found in parts of North America. There are many different ...