Over 500 million years ago, a small marine creature swam through Cambrian waters. Its name: Mollisonia symmetrica. Long ...

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

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 have first evolved in the ocean rather than on land, say scientists.

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

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

Explore how sea spiders' genome sheds light on arachnid evolution and body structure. Discover what makes these deep-sea oddities so important today.

New research explores the wide-ranging consequences of record low summer sea ice in Antarctica. From more ocean warming to extra icebergs, it’s bad news we must hear.

On her first dedicated scientific voyage to Antarctica in March, the Australian icebreaker RSV Nuyina found the area sea-ice free. Scientists were able to reach places never sampled before.

When sea ice forms later, the communities of tiny algae that live within it change too. Detecting these early signals now could help us adapt to a changing world.

Australian Antarctic Division Aside from the “sea butterfly,” researchers also collected sea spiders, sea stars, octopus and “sea pigs,” according to the release.