Скачать или смотреть Polar bear characteristics

Polar bears are good swimmers because they can swim 100 km without stopping. They use their forelegs for swimming and hind limbs for rudder. The oil glands on the skin can lubricate the fur well so that it is water resistant and keeps the body dry while swimming. Polar bears are common around Alaska, Canada, Greenland, Norway, Russia and occasionally in Iceland. Polar bears can live in cold areas thanks to their fur. Polar bear fur can withstand up to minus 30 degrees Celsius. The way for polar bears to survive is to eat seals. The polar bear's body has two layers of fur and a thick layer of blubber. This body layer will help them stay warm even in temperatures of -37 degrees Celsius. In addition to camouflage, the polar bear's clear hair is useful as an efficient absorption of solar radiation. The polar bear environment at the North Pole has little sunlight, therefore the polar bear's clear hair which is fiber optic will be very useful as a light source.
‪@mcqueen591‬ subscribe