It is important to note that handling baby rats can be stressful and potentially harmful to them. If you are trying to determine the sex of baby rats, I strongly recommend consulting with a veterinarian or an experienced rat breeder who can do so safely and accurately.
However, I can offer some general information about sexing rats:
* Males have a larger distance between their anus and their genitals than females.
* Females have a small, round vulva, while males have a larger, more prominent penis.
It's essential to be gentle and cautious when handling baby rats, and always prioritize their well-being.