The body length of Brazilian yellow-eared turtles in adulthood is about 12.7-28.9 cm, and their body length is different in different growing environments. Normally, the wild Brazilian yellow-eared turtles will be bigger, because they have plenty of living space in the wild and the environment meets their requirements, so their body length can reach more than 20 cm in adulthood.

If it is a farmed yellow-eared turtle, it will be smaller. Because there is not enough space for artificial breeding, although the environment is stable, it cannot completely simulate the wild environment, so their body length is about 17-20 cm. There are also some people with poor physique, and their body length is less than 15 cm.

The life span of Brazilian yellow-eared turtles is between 35 and 50 years. In general, the life span of wild Brazilian yellow-eared turtles is longer. Because the wild environment is more in line with their requirements, their life span can reach about 50 years. The life span of farmed Brazilian yellow-eared turtles will be shorter, because although the farmed environment is stable, it is still different from the wild environment, and the farmed Brazilian turtles are prone to illness in their infancy, which will also affect their life span.

In order to make the Brazilian yellow-eared turtles live longer, it is necessary to ensure that their living environment is comfortable and try to avoid their illness.