jueves, 28 de mayo de 2009

Gynantromorpho Morpho didius ( Peru)







gynandromorph is an organism that contains both male and female characteristics. The term gynandromorph, from Greek "gyne" female and "andro" male, is mainly used in the field of Lepidopterology (butterfly/moth study) or entomology (all insects). 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.[1][2][3] A clear example in birds is the gynandromorphic Zebra Finch. These birds have lateralised brain structures in the face of a common steroid signal, providing strong evidence for a non-hormonal primary sex mechanism regulating brain differentiation

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