Hello, I got 2 rats from a pet shop 4 weeks ago. Ive never had rats before and I was told they were boys. I didnt have a preference as long as they were the same sex, and other than the initial look at them (to ensure that they were the same), I didnt really pay attention. They had 'bumps' on...

Hi! Just brought home three new rats, about a month old according to where we got them from, and supposedly all male. However, one I am not so sure. The others have already developed testes but one hasn’t. I don’t think the spacing between urethra and anus is wide enough to indicate a female...