That's fabulous. We bought three wonderful female gerbils last November. They were about 8 weeks old. We only wanted two, but there were three in the cage at the pet shop and I told my husband that it would be cruel to leave one behind. They are delightful little critters. I grew up with pet rats, and domestic rats are somewhat more personable, well, a lot. But, we were given an unused Habitrail system that would have been too small for rats. So, Gerbils! (Sorry, in my experience (I worked in a pet store for a while) hamsters are solitary, territorial and tend to bite.) I was immediately impressed by how naturally friendly they are. In the gerbil manual we bought with them, it talked about taming them. These little girls were like, "Hey, who are you? Can I climb on you?"