Why are polar bears diurnal?

Polar bears are not diurnal. They are predominantly crepuscular, meaning they are most active during twilight hours (dawn and dusk).

Here's why:

* Hunting Strategy: Polar bears primarily hunt seals, which are most active in the water during twilight hours. By hunting at dawn and dusk, polar bears can maximize their chances of catching prey.

* Avoiding Extreme Temperatures: The Arctic experiences extreme temperatures. During the day, the sun can be very strong and the temperature can rise significantly. Polar bears can conserve energy by being active during cooler twilight hours.

* Energy Conservation: Polar bears are large animals with high energy needs. Hunting can be very energy-intensive, so they benefit from conserving energy by resting during the hottest part of the day.

* Protecting Cubs: Female polar bears with cubs often stay in dens during the day to protect their young from predators and the harsh weather.

While polar bears are primarily crepuscular, their activity patterns can vary depending on factors such as the time of year, prey availability, and weather conditions.