Legend has it that long ago, a Bear fell in love with a Shepherdess. He kidnapped her and took her to his cave where I can only enter this Bear, since it was covered by a huge rock that only he could move.
Over time a son of both was born, and when he grew up, he understood the sufferings of his captive mother. He felt sorry by her, and very upset with her Father, He kill him thereby liberating her mother.
Once free, the mother took her son to the village, and they called him "Juan Oso". In the village he demonstrated his astonishing superior physical and mental abilities. Juan grew more than the others, so he ate more than the others. One day, the village leader invited Juan Oso to his house, where he surprised everyone with his enormous strength.
Some time later, the leader, wanted to get rid of Juan, since he ate a lot of food. He tried everything to kill him, but he never got rid of him.