A spider fossil from northeastern China is so exquisitely preserved that it reads like a field notebook from deep time, capturing delicate anatomy that usually vanishes long before rock hardens. I see ...

A new analysis of an exquisitely preserved fossil that lived half a billion years ago suggests that arachnids—spiders and their close kin—evolved in the ocean, challenging the widely held belief that ...

Entombed in rock for over 310 million years, a spider fossil discovered in northern Germany isastonishingly well-preserved. Detailed in a newly published study in the journal Paläontologische ...

Jumping spiders (Salticidae) are a recently evolved family of spiders. They are known for their distinctive large eyes and ability to jump long distances relative to their small size. Australia has ...

Over 500 million years ago, a small marine creature swam through Cambrian waters. Its name: Mollisonia symmetrica. Long thought to be a distant relative of modern horseshoe crabs, new research now ...

What started as routine fossil cleaning turned into a major scientific surprise when researchers uncovered a tiny claw in a 500-million-year-old specimen where no claw should exist. That detail ...

Everyone has come across a chelicerate. This diverse group of arthropods contains more than 120,000 known species, including spiders, scorpions, mites and horseshoe crabs. Each of these critters is ...