How much energy is put into mating for polar bears?

Polar bears generally invest significant energy in mating, which involves extensive courtship behaviors and physical exertion during the mating process. Mating typically occurs in the spring, and males may travel long distances to locate females in estrus, expending energy in pursuit and competition with other males. The mating season can last several weeks, and while the exact energy expenditure varies, it is substantial given the bears' size and the demanding Arctic environment. Overall, the energy invested is critical for reproduction, ensuring the continuation of the species.