What is the incubation period of a Nile crocodile’s eggs?

Nile crocodile eggs incubate for about 90 days.

Female Nile crocodiles lay clutches in nests dug into sand or soil, often near water. The incubation period is commonly around three months, although temperature and nest conditions can affect the exact duration. As in many crocodilians, incubation temperature influences the sex of developing hatchlings rather than simply determining development speed.

The female usually remains near the nest and may respond when hatchlings begin vocalizing. After hatching, young crocodiles can be carried or guided toward water, and the mother may guard them for a period. This parental care is an important contrast with the behavior of many reptiles.

Nile crocodiles are widespread in sub-Saharan Africa and occupy rivers, lakes, swamps, and other freshwater habitats. Their nests are vulnerable to flooding, predation, and human disturbance, so successful reproduction depends on suitable nesting banks as well as water.