Spiders are famous for the business end of their bodies, the sharp mouthparts that seize prey and help explain their ...

The earliest evidence of spiders' fangs has been identified in a 518-million-year-old fossil by scientists at the University ...

Urokodia aequalis, an early Cambrian marine predator from the Chengjiang biota of China, preserves the earliest known evidence of chelicerae -- the pincer-like structures that later evolved into the ...