Great white sharks (Carcharodon carcharias) are among the longest-lived sharks, with a lifespan estimated to range between 70 to 100 years. This is based on various methods, including counting growth rings on their vertebrae, similar to the way tree rings are used to estimate the age of trees. Another method involves measuring the length of the shark and using growth rate estimates to calculate its age.
It's important to note that determining the lifespan of a great white shark is challenging, and these estimates can vary depending on factors such as environmental conditions, prey availability, and individual characteristics. Additionally, great white sharks are slow-growing species, reaching maturity at a relatively old age compared to other shark species.