Sexing

Learn how to flip your rabbit over on the Handling page. 
To get the most accurate result, babies will need to be about 3 months old.
Another "way" to tell, female tend to poo in one corner while males poop everywhere.

Male "Volcano"

Adult male above, baby male below

You can also sometimes see if it is a male based on the testicles to the left and right of the main genital. This is not alwas the case if the male has been neutered. 

Female "Slit"

Adult female above, baby female below