‘Harry Potter Came True’: ‘World's Largest Spider Web’ Discovered In A Cave On Albanian-Greek Border

They might be one of the smallest insects in the animal kingdom– but spiders sure are some of the scariest creatures to most people around the world. With that said, it’s fair to say that the Harry Potter

series was more than successful in giving a glimpse of how scary this species could have gotten– if only there was actually a massive cave full of spiders. Thank the gods that something like that does not exist! Or does it? Well, it seems like the fear did come true. Believe it or not, but researchers have reportedly discovered what they believe is the ‘world’s largest spider web’. Reportedly, there are more than 111,000 spiders living in the said ‘home’ that no one knew about! A video of the massive tissue-like spider web was shared on social media, which went viral. Reportedly, the web was found in a cave on the Albanian-Greek border.A study on the same was recently published- on October 17- in the journal Subterranean Biology. As per the study, the web was built in the ‘permanently dark’ part of the cave, where two common spider species coexist. The web stretched 106 square meters long and went along the wall and ‘low-ceilinged passage’, not so far from the cave’s entrance.As per the published study, the cave in question was the Cave of Sulphur. As the name suggests, the cave has a ‘sulphuric-acid hollow’, which was formed due to ‘oxidation of hydrogen sulphide in the groundwater’, as per Euronews. This is not the first time that this spider colony was discovered, as Speleologists from the Czech Speleological Society also came across it in 2022. In 2024, another team of scientists visited the cave.As per study author István Urák, who is also the associate professor of biology at the Hungarian Sapientia University of Transylvania in Romania, the colony has two species of spiders living in it; Tegenaria domestica and the Prinerigone vagans. As per Urák, the Tegenaria domestica spiders are the dominant species among the two.A video of the same was shared on social media, which went viral for all the obvious reasons.

Check out the viral post:

“Scientists discovered the world’s largest spiderweb, covering 106 m² in a sulfur cave on the Albania-Greece border. Over 111,000 spiders from two normally rival species live together in a unique, self-sustaining ecosystem—a first recorded case of such behavior,” the post read. The posts were shared on X (formerly Twitter), by the handle ‘_fluxfeeds’. The post was shared a few days ago and pulled more than 34K views from netizens.

Scientists discovered the world’s largest spiderweb, covering 106 m² in a sulfur cave on the Albania-Greece border. Over 111,000 spiders from two normally rival species live together in a unique, self-sustaining ecosystem—a first recorded case of such behavior. pic.twitter.com/769YgSt1GC

— Moments that Matter (@_fluxfeeds) November 6, 2025

Internet’s Reactions:

ALSO READ:Biodome To ‘Brain Freeze Flavoured Oxygen’– AI Reimagines Delhi’s ‘Polluted Future’! Viral “This is how horror movies start and you know that,” a user said. “If two hostile spiders can build the largest web ever known, surely we can figure out healthcare in the US,” commented a second person. “Stop touching things we’re not supposed to!!! That too with bare hands? What bro,” added another third person. “Did we learn nothing from the forbidden forest,” added the next internet user.ALSO READ: ‘Hearing Constant Tinnn Sound’: Woman Ends Up With Ear Infection After Using Earphones Like THIS… “Love how someone was like.. let me get my little scissors out. Kidding, please leave them alone, let them live and you live your life,” joked another. “Leave those spiders alone!” added another person.