This encounter between a wasp and spider is like a scene from a zombie movie.
By laying an egg on the back of an orb weaver spider, this wasp manipulates it into zombie-like submission. The parasitic wasp larva forces the spider into becoming a slave to build a web 2.7-40 times stronger than normal.
When his web building work is complete, the wasp larva eats the spider with no remorse. After taking up residence in the web as its cocoon, it eventually emerges as wasp.
Don't worry, zombie spiders won't be taking over the world any time soon. These parasites are rare and only appear once per year.