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.
Arthritis, or joint inflammation, can cause localized swelling in the foot or ankle. Osteoarthritis is a common form of arthritis that may cause occasional swelling, usually in a single joint. Gout is another form of arthritis that typically causes a very painful, red, swollen big toe joint. Gout can also affect the ankle. Some autoimmune diseases cause swelling and arthritis that affect both feet equally, such as rheumatoid arthritis, psoriatic arthritis, lupus, and reactive arthritis (Reiter's syndrome).