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.
Major causes of anemia are: 1  Nutritional â iron, folate and vitamin B12 deficiencies. 2  Acute or chronic blood loss (gastrointestinal bleeding/heavy periods) 3  Infections â malaria, HIV. 4  Chronic diseases â renal, neoplasia. 5  Parasites. 6  Hemolytic anemias â drugs, congenital. 7  Hemoglobinopathies â sickle cell, thalassemia.