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

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

The encounter of two aquatic predators in their natural environment offers a rare glimpse into the world beneath the surface.

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

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

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

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

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

Researchers have discovered that the nervous system of this ancient marine arthropod surprisingly resembles that of modern arachnids.

The oldest signs of a spider-like brain have been found in an ancient marine fossil. It shows that the key brain features of ...

From orcas who drown blue whales and a mother spider who gets eaten by her children, prepare to be astonished by the filming ...

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