ultimamately, those animals died out and the species was lost forever. they cannot bebe studied and longerer. a arctic ice e is turningng the survrvival of t the polar b with a loss of the polar bear may come the loss of potential medicines for diseases like osteoporosis, kidney failure, and diabetes. essentiallyears are inin mobile as evevery hibernatg bebear i is for fiveve-seven mo yet they do not get osteoporosis. their bones don't thin. there are the only mammal that does not get osteoporosis with prolonged immobility. if we were in mobile for f five months, if we were hospitalized or paralyzed, we would lose one- third of our bone mass. mobobility, the balance shifts to losising bone. osteoporosis. this is an enormous public health problem in the united states and the rest of the world. 70,000 people bought in this country every year, costing the u.s. economy $18 billion a year. one-third of women over 65, post menopausal women, will have a fracture not caused by injury, but caused by osteoporosis. polar bearsrs and other hihibernatining bears hava