How long can female Brazilian Black Tarantulas (G. pulchra) live?

They can surpass two decades, reaching 30 years old

Sexual dimorphism in longevity is highly pronounced in the Brazilian Black Tarantula (*Grammostola pulchra*). While the males of this species have a relatively short lifespan, generally living only about 6 to 8 years, the females exhibit remarkable longevity. Female *G. pulchra* are known to live for extended periods, often surpassing two decades. Furthermore, documentation exists showing some females reaching an age of 30 years old. This vast difference in lifespan means that a mature female represents a commitment spanning many decades for any keeper or observer, setting them apart from the shorter-lived males.