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 ...

The study, led by biologists at Harvard University, found that the slugs build sac-like structures known as kleptosomes out of their own cells in which the chloroplasts are stashed. The kleptosomes ...

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 ...

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 ...

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.

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 ...