The knotty sea spider, Pycnogonum litorale, is not actually a spider, but it does represent a significant early branch in the genetic family tree that includes spiders, as well as scorpions, ticks and ...

Scientists have uncovered a 400-million-year-old genetic secret that gave spiders the ability to produce silk and weave their webs. Spiders didn't begin their journey on Earth in the same way as they ...

A timeline of the spider fossil record -- Fossils -- Living fossils -- Chance and change -- Outward and upward -- Triumph over thin air -- Small changes, big benefits -- Spinning, running, jumping, ...

City spiders are growing bigger. Studies show urban spiders are larger and more fertile. This is linked to warmer city temperatures and abundant food sources near lights. These changes demonstrate how ...