Science, Discovery, Tech and Environment · 18 March 2026

Rare gynandromorphic Vela carli crab discovered in Silent Valley, Kerala.

Exam-focused facts from the 18 March 2026 current affairs briefing.

Key facts

  • The freshwater crab species Vela carli was found exhibiting both male and female traits in Silent Valley National Park, Kerala.
  • Researchers from MES Mampad College, Kerala conducted the study that documented this rare case of gynandromorphy.
  • Scientists Dr. K.S. Anoop Das and K.T. Fahis from the Zoological Survey of India (ZSI) identified the crab during routine fieldwork inside a tree cavity.
  • Gynandromorphy in this crab results from an early cell-division error, causing different body parts to develop as male and female rather than creating a functional hermaphrodite.