A 480-million-year-old slug-like fossil has been uncovered in Morocco, shedding new light on the evolution of molluscs — a diverse group of invertebrates that includes clams, snails and squids.
A 480-million-year-old slug-like fossil has been uncovered in Morocco, shedding new light on the evolution of molluscs — a diverse group of invertebrates that includes clams, snails and squids.