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New Species of Plants and Animals Discovered

Rare ‘Dual-Sex’ Crab Discovered in Silent Valley

Why in the News

A rare freshwater crab species, Vela carli, found in Silent Valley National Park, has been discovered showing both male and female biological traits.

What was discovered?

  • Scientists found three crabs exhibiting dual sexual characteristics
  • The condition is called Gynandromorphy
  • Example in this case:
  • Some body parts had male reproductive organs
  • Others had female features (gonopores)

What is Gynandromorphy?

  • A rare biological condition where: An organism shows both male and female characteristics.
  • Usually caused by: Errors during cell division (chromosomal distribution). 
  • Important distinction:
    • Not hermaphroditism (where both reproductive organs function normally)
    • Instead, it is a mosaic of male and female tissues

About Vela Carli

  • Vela carli is a freshwater crab species endemic to India, specifically found in the Central Western Ghats, one of the world’s richest biodiversity hotspots.
[2013] Consider the following pairs: National Park : River flowing through the Park Corbett National Park : Ganga Kaziranga National Park : Manas Silent Valley National Park : Kaveri Which of the above pairs is/are correctly matched? (a) 1 and 2 (b) 3 only (c) 1 and 3 (d) None

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