30 cm tortoises are born for about 5-10 years, and their growth rates are different in different living environments and feeding methods. Normally, the Brazilian tortoise raised at constant temperature grows the fastest, and it only takes about 3-4 years to grow to 30 cm. Because they are kept at constant temperature, the environment is stable, and there is plenty of food, they will not go into hibernation, so they will grow faster.

If it is a domestic tortoise, it normally goes into hibernation every year, but it can ensure adequate food and nutrition, and it takes 8 years to grow to 30 cm.

If it is a Brazilian tortoise living in the wild, its growth and development speed is relatively slow, and it takes 10 years to mature. Brazilian tortoises generally have a body length of 20-30 cm in adulthood, and some have poor physique, even if they grow less than 30 cm in adulthood.

It usually takes 5-6 years for domestic Brazilian tortoises to reproduce. They start reproducing from June to September every year and lay eggs 3-4 times a year, with a total of 40-90 eggs.

When the Brazilian tortoise breeds, if the female accepts the male's pursuit, the male will climb on his back, and the male will extend his genitals into the female tortoise's release hole to complete fertilization.