Specimens raised in captivity may be larger. Adult females are larger than adult males.
Males live eight to ten years.
Captive females may live as long as 25 years. The tarantula in this picture is a female This tarantula was the most popular pet tarantula in the US until over-collecting endangered its habitat. Red Knee tarantulas were once imported accidentally into the United States with the bunches of bananas. Now bananas come in boxes instead of bunches. Red knee tarantulas live in the western parts of Mexico near Acapulco.