The World of Polar Bears
A polar bear’s hearing is probably as sensitive as human hearing. Humans can hear sounds with frequencies as low as 0.02 kHz and as high as 20 kHz.
The eyesight of polar bears appears to be similar to human’s. Polar bears have a protective membrane over their eyes, that may help shield the eyes from ultraviolet light.
Little is known about a polar bear’s sense of touch; however, polar bears have been observed delicately moving or touching objects with the nose, tongue, and claws.
Polar bears prefer certain foods, but researchers don’t know how acute the sense of taste is or how important it is in food preference.
A polar bear’s sense of smell is acute, and it is the most important sense forÂ detecting prey on land. A polar bear can smell a seal more than 32 km (20 mi.) away (Domico, 1988).
A. HĂ¶rfĂ€higkeit Die HĂ¶rfĂ€higkeit des EisbĂ€ren ist vermutlich so sensibel wie die Menschliche. Menschen kĂ¶nnen TĂ¶ne wahrnehmen, deren Frequenzen zwischen 0,02 kHz und 20 kHz liegen. B. SehvermĂ¶gen Das SehvermĂ¶gen des EisbĂ ...
A. Size Polar bears are the largest land carnivore. Male polar bears (boars) grow two to three times the size of female polar bears (sows). Boars weigh about 350 to more than 650 kg (772-1,433 lb.) and are about 2.5 to 3 m (8.2-9. ...