Coelacanths are prehistoric fish that were once thought to be extinct but were rediscovered in the 20th century. Their average lifespan is not well-documented due to their rarity and the limited knowledge available about their biology. However, some estimates and observations suggest that coelacanths may have a relatively long lifespan, possibly ranging from 60 to 100 years or more.
These estimates are based on the slow growth rates and reproductive characteristics of coelacanths, which are similar to other long-lived fish species. Coelacanths have a slow rate of reproduction, with females giving birth to relatively few offspring at a time, which is indicative of a longer lifespan.
It's important to note that more research is needed to provide a precise average lifespan for coelacanths. Their secretive and deep-sea habitat, as well as their status as a protected species, makes it challenging to study them in detail. As a result, our understanding of coelacanth lifespans is still somewhat speculative.