After an old tree was forced to be chopped down,  there has been another piece of sad news.   The fifth white dolphin this year,  was stranded and died as a result.   This time it was the corpse of a white dophin calf that was discovered.   Since there were no superficial injuries,  some studies indicate that it is usually because female white dolphins have a high concentration of pollutants,  so that their calves have weaker immune systems,  which increase the risk of premature birth and early death.   Nature's warning bell for humans is ringing more and more often.