Not sure if there are any. You can make up your own. But remember, although polar bears receive most of the press for endangered animals, there are several more species in more trouble than the polar bear, which in fact is not endangered, but is listed as "Vulnerable" by the IUCN.
That would depend on the strength of the ten men, and the size of the polar bear.
river water supports plant life and wildlife, don't pollute it, or it will convert into a knife.
Lion, elephant, mountain lion, horse, raccoon, mole, elk, polar bear, sparrow, boar.
Male polar bears can stand nine feet or more, sometimes up to ten feet.
top 10 short slogans on conservation of natural resources
becuz hes gonna be old like yoda
kadayanallur
health is wealth
janhain to jahanhain
clean green delhi , clean green life
Yes, Polar Bears have black skin, but most people do not know this because they have colorless fur (not white...). You can see this is true by looking at the nose of a polar bear, where the fur is thinnest, and you will see that it is black.
They probably can eat blue whales, but it would seem nearly impossible for even ten polar bears to kill a blue whale. The wale would probably just swim deeper into the water if it were attacked by a polar bear, causing the bear to need air and leave the whale alone.