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.

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 ...

In a twist worthy of a detective novel, a long-misidentified fossil at Harvard's Museum of Comparative Zoology (MCZ) has ...

Two new papers analyze fossils found in Canada and Kenya, respectively—vastly different environments for the preservation of ...