What frequencies can polar bears hear?

There isn't a definitive answer about the specific frequency range polar bears can hear. However, we can make some educated guesses based on general mammalian hearing abilities and research on closely related species.

Here's what we know:

* Mammals generally have better hearing than humans. This is particularly true for those who rely on sound for hunting and communication.

* Polar bears are excellent hunters and use sound to locate prey. They have a highly developed sense of smell, but sound also plays a role in their ability to track seals in ice caves and on the ice.

* Studies on other bears have shown a wide range of hearing. For instance, brown bears have been found to have a hearing range from 20 Hz to 40,000 Hz.

Based on this, it's likely that polar bears can hear a range of frequencies comparable to other bear species, potentially from as low as 20 Hz to as high as 40,000 Hz. This would give them the ability to hear low-frequency sounds that travel far, like the rumble of ice cracking or the distant sounds of prey, and higher-frequency sounds that are helpful for detecting prey movements.

However, it's important to remember that this is still a bit of a guess. More research is needed to determine the exact hearing range of polar bears.