A half-a-billion-year-old spiny slug had shed light on the origins of animals like oysters and octopuses, researchers have said. Researchers including scientists from the University of Oxford have ...

Researchers found two 430-million-year-old mollusc fossils named Punk ferox and Emo vorticaudum in Herefordshire, England, revealing that early molluscs were more complex and adaptable than ...

5 fun facts about evolution. The last common ancestor of all life on Earth is estimated to have existed around 4.2 billion years ago.; There are three ingredients necessary for natural selection ...

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding could upend what’s known of their evolution.

Unlike most molluscs, Shishania did not have a shell that covered its body, suggesting that it represents a very early stage in molluscan evolution. Present-day molluscs have a dizzying array of ...

Unlike most molluscs, Shishania did not have a shell that covered its body, suggesting that it represents a very early stage in the evolution of the animal. Today molluscs come in many different ...