An ancient ancestor of spiders and relatives doubled its genome about 400 million years ago, setting the stage for the evolution of spinnerets.

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 ...

The unusual DNA of a particular type of spider is fascinating scientists, as they think it may hold the key to diverse evolution across the world we live in. Australia’s peacock spider, known for its ...

Introduction -- The "hardware" of web-building spiders: morphology, silk, and behavior -- Functions of orb web designs -- Putting pieces together: tradeoffs and remaining puzzles -- The building ...