World's biggest spiderweb discovered inside 'Sulfur Cave' with 111,000 arachnids living in pitch black

Scientists discovered over 111,000 spiders living together in the world's largest spiderweb inside Albania's Sulfur Cave, marking the first time these two common species have shown colonial behavior. The spiders have genetically adapted to the cave's extreme sulfur-rich environment, cooperating instead of preying on each other.