Which animal has the most extended period of gestation for a reptile?

The reptile with the longest gestation period is the African rock python. The African rock python is a species of snake found in sub-Saharan Africa. Female African rock pythons can carry eggs for up to 90 days. After that, they can take up to 90 more days to hatch, making their total gestation period around 180 days. During this period, the female will coil around the eggs to keep them warm, and she will not eat until the eggs hatch.

The African rock python is not the only reptile that has a long gestation period. Some turtles can take up to 120 days to lay their eggs, and crocodiles can take up to 90 days. However, the African rock python has the longest gestation period of all reptiles.