How to tell the sex of two week old rats?

Does anyone know?How to tell the sex of two week old rats?
Really easily. There are 2 methods.


1. Compare distance between anus and genitals.-


http://www.ratz.co.uk/sexingrats.html


2. Nipples=Girl-No Nipples=BoyHow to tell the sex of two week old rats?
take them to a vet.
Its hard to tell that young if you dont have experience. The best way ive found is looking for nipples or lack thereof and the spacing between the urethra and anus (closer together, therefore girl) or the penis and anus (further apart, therefore boy).


http://www.ratz.co.uk/sexingrats.html %26lt;-- pictures to help you
if they have a penis, it is a boy, if there is a vagina, you got a girl..