Polar bears are excellent swimmers and they will travel long distances between shore and the sea ice if necessary. However, if a storm kicks up during these increasingly long swims (caused by the warming ocean) they can drown. These long swims and storms are also often difficult for cubs.
A urethral stricture is an abnormal narrowing of the urethra that slows or blocks the stream of urine exiting the body.The urethra is part of your urinary system, which is also known as the urinary tract. urethral stricture is an abnormal narrowing of the urethra that slows or blocks the stream of urine exiting the body.
Urethral stricture may be caused by inflammation or scar tissue from surgery, disease, or injury. Rarely, it may be caused by pressure from a growing tumor near the urethra. Strictures that are present at birth (congenital) are rare. The condition is also rare in women.