Why are polar bears strong runners?

Polar bears are strong runners due to their powerful musculature and large, robust limbs, which allow them to sprint quickly over short distances. Their large paws act like snowshoes, providing better traction on icy surfaces. Additionally, their body structure is optimized for both speed and endurance, enabling them to chase prey effectively across varied Arctic terrain. However, they typically rely on short bursts of speed rather than sustained running.