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

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

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

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

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

A fresh look at a 500-million-year-old fossil by researchers from the University of Arizona and Lycoming College in the US ...

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

A new study suggests spiders may have ancient marine origins. Researchers analyzed a 500-million-year-old fossil, Mollisonia ...

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

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