The special brains of spiders may have started to evolve in the oceans, long before their ancestors crawled onto land. A fresh look at a 500-million-year-old fossil by researchers from the University ...

A 500-million-year-old fossil could rewrite the history of arachnids. This discovery challenges the terrestrial origins of spiders and their relatives. Arachnids, including spiders and scorpions, are ...

The spiny legged 308-million-year-old arachnid Douglassarachne acanthopoda was discovered the famous Mazon Creek locality. More than 300 million years ago, all sorts of arachnids crawled around the ...

There’s an apocryphal story among J.R.R. Tolkien fans that the fantasy author’s villainous portrayals of spiders were inspired by a childhood incident when a tarantula bit him. In a better documented ...