I have what is probably a stupid egg question. Can they go dormant in the winter and hatch in the spring? I was under the assumption that if they did not hatch in the fall, if there were more eggs, they would not hatch. That would seem to be simple biology, but turtles are amazing creatures. I had three hatchlings in the fall and thought that was it. But I'm remodeling the enclosure and I just found the two egg shells pictured below. Are these just the egg shells from last fall (I don't think I would have just not noticed them), or do I need to be watchful of more hatchlings?