Stories
Himalayan Tahr: The 30 km 'Barrier Wall' that Separated Evolution - Western Ghats Secrets Revealed!
- •The Western Ghats, older than the Himalayas, are a UNESCO World Heritage Site and a global biodiversity hotspot.
- •The origin of the Nilgiri Tahr, Tamil Nadu's state animal, puzzles geologists as its closest relatives are only in the Himalayas.
- •The 30 km wide Palghat Gap, between Coimbatore and Palakkad, is a geological marvel that separated evolution, creating new species.
- •Lion-Tailed Macaques, unique to the Western Ghats, are endangered due to habitat loss as they rarely descend from treetops.
- •The Purple Frog, discovered in 2003, is living proof of Continental Drift, with its closest relatives found only in the Seychelles islands.
Key Questions Answered
During the Ice Age several thousand years ago, severe cold caused Himalayan tahrs to spread into South India. As the Earth warmed, these tahrs sought refuge in the highest, coldest peaks of the Nilgiri and Anaimalai regions, where they remain today as Ice Age prisoners.
The Palghat Gap is a 30-kilometer-wide hot, flat stretch between Coimbatore and Palakkad that connects Tamil Nadu and Kerala. Biologically, it serves as a genetic wall preventing animals north and south of the gap from crossing, leading organisms on either side to evolve into new species with different genetics.
The Purple Frog was discovered in the Western Ghats in 2003 and serves as a living testament to Continental Drift. Its closest relatives are found in the Seychelles islands near Africa, originating from a time when landmasses like India and Madagascar were connected.
