I have two mice, both black and white fancy. A male and female. The female got pregnant and had four babies (her last litter, she only had one!). Anyway, they ended up killing (but not eating) two of the four babies. The other two seemed to be okay. They started to develop into grey and white spotted mice, which is odd because the parents are both black and white? Anyway, the parents also have black eyes, and one of the babies ended up having red eyes. The red-eyed baby also seems to be verrry small - like a runt, and has clumsy walking, she seems to stumble. What went wrong?