how many chams they have....(0.1) means 1 female of something..the number before the period(1.0) means 1 male)......some mite have nosey be panthers(1.2)....which means 1 male and 2 female panthers....and sometimes they mite have (1.1.24) which means 1 male, 1 female and 24 babies!!!!.....or (0.0.1) which means sex unkown...hope this helps