well i used to have a turtle and it was a rusian box turtle. how i knew is well if its eyes r red it is a boy and if they r brown it is a girl.also if its shell is more of a circle it is most likely a girl. and if it is an oval it is most likely to be a boy. and also if its tail is more skinny, people say it is a girl and is its tail is more fat it is suppose to be a boy. thnx:) hope u find out!