Polar bears depend on frozen ocean surfaces more than any other land predator. The ice functions as a platform where they ...

"Nutritional stress does play a role. It's just that it doesn't appear to be the role that we thought it was, just driving ...

Though Vitamin A is healthy is reasonable doses, it becomes a deadly toxin in high quantities. In the frozen wilderness of the Arctic, human survival historically depended on using every available ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...