Our 5 yr-old cornsnake has laid for the first time and we generally don't have a clue! We don't know if they are fertile or not as we were told we had 2 females but you never know. We've put a lay box with damp vermiculite in and we think she's laid about 20. What do we do now? Is it safe to just raise the temperature of the tank and leave them with her or do we have to incubate them? She's very protective of them! Also, 2 or 3 of the eggs have turned yellow, do we leave them in or take them out? Didn't expect any suprises like this after 5yrs! lol