Science, Discovery, Tech and Environment · 1 December 2025

Wildlife Institute of India (WII) discovers 13 new bush frog species in Northeast India

Exam-focused facts from the 1 December 2025 current affairs briefing.

Key facts

  • A comprehensive five-year study by scientists at the Wildlife Institute of India (WII) led to the discovery of 13 new amphibian species across Northeast India.
  • The study was based on extensive sampling across 81 localities in eight states, including 25 protected areas.
  • Of the 13 new bush frog species, six were found in Arunachal Pradesh, three in Meghalaya and one each in Assam, Mizoram, Nagaland and Manipur.
  • The study integrates acoustic, genetic and morphological analyses, and re-examines century-old museum specimens from the Indo-Burma region.
  • Bush frogs bypass the tadpole stage entirely: their eggs hatch directly into froglets, making them independent of standing water and reliant on humid forest microhabitats.