I can’t believe I studied zoology for 3 years and never came across gynandromorphs! It was by following some intelligent people on Tumblr that I saw these strange looking insects and birds that were bilaterally half male half female. They showed female phenotypic traits down one side of their bodies and male traits down the other!
Tiger Swallowtail (Papilio glaucus) gynandromorph (left half male, right half female).
To find out how this phenomenon occurs in insects click here.
For more information on gynandromorphic birds click here.