The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first ...

A new analysis of an exquisitely preserved fossil that lived half a billion years ago suggests that arachnids—spiders and ...

Finely preserved brain features in a tiny fossil suggest that spiders and their kin may have first evolved in the ocean ...

Learn how a fossil from approximately 500 million years ago traces the evolutionary origins of spiders, scorpions, and other ...

Finely preserved brain features in a tiny marine arthropod fossil suggest that arachnids – spiders and their close kin – may have first evolved in the ocean rather than on land, say scientists.

Many major groups of animals that have become a mainstay in modern times first appeared during the Cambrian Explosion.

Spiders and scorpions have ruled as terrestrial predators for 400 million years, with their success often attributed to ...

KUNMING, July 22 (Xinhua) -- Beneath the clear waters of Fuxian Lake in southwest China's Yunnan Province, nestled amid beautiful surrounding hills, lies a 518-million-year-old record of early animal ...

Ancient trackways in seabed mud show animals moved purposefully 10 million years before the Cambrian Explosion.

A 500-million-year-old sea creature called Mollisonia shared a similar brain structure to modern spiders, suggesting that ...