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.
The most common foot and ankle injuries that cause swelling include ankle sprains, torn tendons, and fractures. Chronic stress or overuse can lead to tendonitis, bursitis, and ligament or muscle strains, all potential causes of swelling.