Animals Literally Half Male And Half Female

image credit: Burkhard Hinnersmann cc

A gynandromorph is an organism that contains both male and female characteristics. These characteristics can be seen in butterflies, where both male and female characteristics can be seen physically because of sexual dimorphism. Cases of gynandromorphism have also been reported in crustaceans, especially lobsters, sometimes crabs and even in birds.

(thanks Bojan)