The largest reptile in the world is the saltwater crocodile, generally 13 to 18 ft. long and weighing up to 2,200 lbs. Females are smaller, usually 7 to 11 ft. and 1,000 lbs.
Possible causes of anemia include: 1  Certain medicines. 2  Destruction of red blood cells earlier than normal (which may be caused by immune system problems) 3  Long-term (chronic) diseases such as chronic kidney disease, cancer, ulcerative colitis, or rheumatoid arthritis.
Iron deficiency is the most common cause of anemia among women in their childbearing years. However, there are many other possible causes, such as bleeding ulcers, sickle cell disease and ulcerative colitis. Anemia may also be caused by significant blood loss. How anemia is treated depends on the cause.