SSC CHSL 2025 PYQ — Question 87

SSC CHSL - 24 Nov 2025 - Shift 1 • General Awareness • Q87

A long-lost velvet worm species Typhloperipatus Williamsoni, has been rediscovered after 111 years in _____.

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1: Arunachal Pradesh.
Explanation:

  • A species of velvet worm—long considered extinct and scientifically named *Typhloperipatus williamsoni*—has been rediscovered in Arunachal Pradesh after 111 years.
  • History of the Discovery: This species was first discovered in 1911–12 during the renowned 'Abor Expedition.' Since then, the species had remained elusive to the scientific community.
  • What is a Velvet Worm? It is an extremely rare organism considered a 'living fossil' because it has undergone very little evolutionary change over millions of years. It is regarded as a 'connecting link' between Annelida (worm-like organisms) and Arthropoda (insects and arthropods).
  • Characteristics: Their bodies possess a soft, velvet-like texture, and they are primarily found in damp, dark environments (such as beneath decaying tree trunks).

Recent Biodiversity Discoveries in Arunachal Pradesh (Quick Revision):

  • New Species: In recent years, several new species of frogs, fish, and lizards have been discovered in Arunachal Pradesh.
  • Namdapha National Park: This is a major biodiversity hotspot in the state, home to rare species such as the Flying Squirrel.

Important Questions for Upcoming Exams:
Question: To which biological group does *Typhloperipatus williamsoni* belong?
Answer: Onychophora (or Velvet Worms). Question: Between which two groups is the velvet worm considered a connecting link?
Answer: Annelida and Arthropoda.
Question: Near which mountain range in Arunachal Pradesh was this species rediscovered?
Answer: The Eastern Himalayan region (specifically around the Siang Valley).