To collect e-DNA from wild polar bears in northern Alaska, we sampled the upper layer of snow (~1 cm) from their footprints. The snow was thawed and filtered to capture DNA—in the form of epidermal ...

He wondered whether the global population of 25,000 polar bears would die the way this bear was dying. He urged people to do everything they could to reduce their carbon footprint and prevent this ...

To better understand the relationship between sea ice loss and polar bear survival, the researchers developed a “bio-energetic model” that tracks the energy dynamics of individual polar bears ...

One of the great things about being a polar bear scientist is that you can only work on sunny days. The temperatures that slip down to -30°C are a bit less wonderful, but the scenery makes up for it.

Polar bears are the planet’s biggest land-based carnivores – although they actually spend most of their lives around water and ice (their Latin name means ‘sea bear’). So they’re at particular risk ...