California has some of the highest diversity of spiders in the world, yet climate change and habitat encroachment are killing them.

A new study suggests spiders may have ancient marine origins. Researchers analyzed a 500-million-year-old fossil, Mollisonia Symmetrica. They found its neural structure resembles modern spiders ...

The data analysis also showed that spiders from 11 different families are able to catch and eat snakes. "That so many different groups of spiders sometimes eat snakes is a completely novel finding ...