A pitch-black cave in the Balkans is home to what appears to be the world’s largest spider web, which researchers say is a singular work of cooperation by two usually-hostile species of spider. #spiders #science #spiderweb Read the story here: nyti.ms/47Klc4T Subscribe: bit.ly/U8Ys7n More from The New York Times Video: nytimes.com/video ---------- Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch.