– The lifespan of bears is averagely 50 years.
– Bear cubs are 30 cm tall and weigh 600 – 800 gram when born.
– Bear cubs are featherless, toothless and blind when born. After a while, they all develop.
– Polar bears can swim approximately for 100 km without rest.
-Polar bears can obtain a swimming speed of 10 km/h (6.2 mph).
– An adult bear can run as fast as a horse.
– Male bears are always larger than female bears.