I have a 10 year old female Leopard Gecko and an eight year old male. They have never been together although their ten gallon aquariums were often right next to each other. This summer I had a very large aquarium become available so I built a divider out of a window screen, split the tank in half, and put them each on a side. Everything seemed to be going well until today. When I arrived at the school where I teach and keep my geckos I found my female in with my male. I believe she climbed a stick, then the screen to a half inch gap at the top of the cage (18” up). They obviously did some fighting as she had a scab about half way down her tail and red marks (bruising?) on the side of her neck.. I put her back on her side and fixed the gap. What I am wondering is did she go in there because it is breeding season? Is the bite mark on her neck from mating? She has never laid eggs before do I need to get a nest box ready or is she too old? Ant help is appreciated, she is a very sweet girl and we are worried about her. Thanks!