Compare two animals

Spiny softshell turtle

Length

0.11 to 0.54 m (adult shell (carapace) length: males from about 11 centimeters to at most 27.5 centimeters; females over 28 centimeters, up to 54 centimeters)

Lifespan in the wild

60 to 70 years (estimated longevity about 60 to 70 years (calculated from age at maturity, Iverson 2024); recorded longevity probably well over 30 years)

Lives in

United States, Canada and Mexico