Rare cases occurs in nature. One example, organism which is a half she and a half he, or a combination of male and female. The difference of Gynandromorphy and Hermaphroditism is that, hermaphrodite is an organism that has both male and female reproductive organs but has external characteristics of only one gender while bilateral gynandromorph possessed both the traits of male and female divided in half. Also, gynandromorphism only occurs in insect and not to mammals because of its complex physiology.
Sources:
Natural History Museum