How big does a Mojave Desert Tortoise get?

Mojave Desert tortoises males are larger than females and have curved horns on the lower shell, under the neck. Mature tortoises weigh between 8-15 lbs/3.6-7 kg, are 9-15 in/23-38 cm long, and can live between 30 and 50 years, though some individuals can live to be 80 years old.