Half a billion years ago, a strange sea-dwelling creature called Mollisonia symmetrica may have paved the way for modern ...

In a fascinating study published in Current Biology, researchers have turned our understanding of arachnid evolution on its ...

Spiders and their arachnid relatives may have actually originated in the sea, according to analysis of an "exquisitely ...

A 500 million-year-old fossil with a spider's brain structure suggests that arachnids may have evolved in the oceans.

New research shows spiders didn’t come from the Earth’s land habitats as once believed but originated in ancient seas.

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

An international team of scientists, led by experts in America, have discovered a 500-million-year-old fossil that suggests ...

University of Arizona researchers reviewed an "exquisitely preserved" fossil of Mollisonia symmetrica that supports the idea ...

A fossilized brain from a 500-million-year-old sea creature shows unexpected spider-like features, hinting that spiders and ...

The tiny 'backward' brain of an ancient sea creature hints that spider ancestors might have gotten their start in the ocean.

Finely preserved brain features in a tiny marine arthropod fossil suggest that arachnids – spiders and their close kin – may ...

One of the creepiest, crawliest creatures of the Earth may have been swimming before adapting to live on land, new research suggests.