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Massive Spider Web Discovered in Albania-Greece Cave

1/5/2026

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Story summary
  • Scientists have discovered the world's largest spider web in Sulfur Cave on the Albania–Greece border.
  • The web spans about 1,140 square feet and houses approximately 111,000 spiders.
  • Two species, Tegenaria domestica and Prinerigone vagans, coexist in the cave despite their usual predatory relationship.
  • Biologist Blerina Vrenozi of the University of Tirana says the cave's darkness may prevent them from seeing or attacking each other, challenging previous assumptions about their interactions.