Cambrian Period creatures known as sea moths seemed alien because of their additional eye, but a study finds anatomical features more in line with modern animals. An artist’s impression of Mosura ...

A mysterious fossilized creature discovered more than a century ago has finally been decoded, offering stunning insights into one of the oldest animal groups on Earth. The enigmatic Helmetia expansa, ...

Researchers have discovered an ancient moth-like sea predator in a treasure trove of museum fossils in Canada. The half-a-billion-year-old creature, Mosura fentoni, reveals that Cambrian arthropods ...