The life span of fish varies greatly, ranging from one year old to more than a hundred years. There are mostly legends about long-lived fish, but there is no real evidence. For example, European natural history has recorded a 150-year-old carp and a 267-year-old pike. However, many scientists have raised many questions and believe that the age judgment is wrong.
Generally, cold-water fish have a long lifespan, while tropical fish have a very short lifespan. It is very common for sturgeons to be 50-60 years old, and goldfish raised in captivity have a record of living for 17 years.
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