Polar Bear Ursus maritimus

Arctic and Marine Habitat Largest land predator but spends much of its time in the arctic ocean. Lives in one of the coldest and harshest places on earth.

Adaptations for Cold Weather  Large size – up to nearly 1500 lbs.– high surface to volume ratio  Bigger size is easier to keep warm because less of body is exposed to cold air and water.

Adaptations for Cold Weather Large size – up to nearly 1500 lbs.– high surface to volume ratio  Bigger size is easier to keep warm because less of body is exposed to cold air and water. Fur and skin : The fur is 95 percent efficient in converting ultra-violet sun rays into usable heat. Its transparent hairs have a hollow inner core which scatters ultra-violet light, converting it into heat when it reaches the bear's black skin.

Adaptations for Hunting Eyes up Front: binocular vision helps it see prey Keen sense of smell: Can even smell to detect seals through ice

Adaptations for Hunting Eyes up Front: binocular vision helps it see prey Keen sense of smell: Can even smell to detect seals through ice Fast on land and in water: 25mph on land 6 mph in water. Camouflage: White fur and behaviors

Adaptations for Hunting Eyes up Front: binocular vision helps it see prey Keen sense of smell: Can even smell to detect seals through ice Fast on land and in water: 25mph on land 6 mph in water. Camouflage: White fur and behaviors

Threats Hunting

Threats Hunting Global Warming