The average age varies greatly by species. 46 was the longest age  of a snake in captivity at the Philadelphia Zoo. The average age of  North American Snakes will live aboutâ¦ 18-20 years in captivity.
4) Pregnancy. Pregnancy is another of the common causes of swollen feet and ankles. There are three reasons for this: a) the excess weight gained puts more pressure on the legs and feet. b) the expanding uterus can place pressure on the blood vessels for the legs and. c) pregnancy hormones cause the body to retain fluids.
Get the facts on the causes of swollen ankles and swollen feet, and learn about the medications used for treatment of ankle and foot swelling. Congestive heart failure, pregnancy, sprains, and strains are some causes of swollen feet and ankles. Pinpoint your symptoms and signs with MedicineNet's Symptom Checker.