Archive · 10 Nov 2025
World's Largest Spider Web Discovered in Sulfur Cave
Scientists found a giant spider web inside a dark cave on the border of Greece and Albania.
It's huge, covering over 1,000 square feet!
This amazing web is like a big city for spiders, home to about 111,000 of them.
What's really surprising is that two different kinds of spiders, who usually live alone, are all living and hunting together on this one giant web.
They are able to do this because of the special environment inside the cave, which is filled with sulfur and always dark.
The world's largest spider web, spanning approximately 1,140 square feet (106 sq meters), has been discovered in a sulfur cave on the Albania-Greece border.
The web is inhabited by an estimated 111,000 spiders.
The colony consists of two species, Tegenaria domestica and Prinerigone vagans, which are typically solitary.
These spiders have adapted to live and hunt together within the cave's unique, dark, and sulfur-rich ecosystem.
Researchers describe the web as a 'spider megacity' due to its immense size and population.
- Who
- Scientists
- What
- Discovery of the world's largest spider web, a massive interconnected network.
- When
- Not specified, but implies recent discovery.
- Where
- A sulfur-filled cave on the Albania-Greece border.
- Why
- Unique ecosystem within the sulfur cave allows two typically solitary spider species to coexist and build a massive web.
- Location
- Sulfur Cave, Albania-Greece border
- Web Size
- Approximately 1,140 sq ft (106 sq meters)
- Spider Count
- Around 111,000
- Spider Species
- Tegenaria domestica and Prinerigone vagans
- Cave Environment
- Sulfur-filled, permanently dark
