518-million-year-old fossil reveals vertebrates once had four eyes and extra organs that later shaped evolution.

New research shows that the earliest sponges were soft bodied and lacked skeletons, explaining why their oldest fossils are ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Here's why Dickinsonia challenges our previously held ...

Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...

Chinese researchers have identified a new species of dicynodont — an extinct group of mammalian species that appeared long before the dinosaurs — challenging past paleontological assumptions about ...