Consider one of the most dangerous predators, along with one of the Kratt brothers. It took the form of a crocodile, and now he will have to sit out the egg, which not so long ago was postponed. In addition to maintaining a certain temperature, you will need to protect the eggs from other predators that may eat them. Bury the ground to increase the temperature or vice versa bury to lower it. Once suitable enemy, frighten him, that he rushed away from your nest.