Alien-like long, ridged organisms are now classified as the oldest known animals on the planet. The Dickinsonia, approximately 558 million years old, puzzled scientists for decades, but fat molecules finally solve the mystery.
More than 500 million years ago, funny-looking Ediacaran organisms dominated the planet's oceans. The nature of these creatures have been a long-standing mystery, but now scientists say they are actually Earth's first animals.
Ancient footprints from before dinosaurs even ruled the Earth were just found in southern China, suggesting that animals developed appendages far earlier than we believe.
New fossil evidence show that the rise of ecological engineers during the cambrian explosion may have change the ecological aspects of Earth causing the first mass extinction.
Computer simulations of the eating methods of the long-extinct ocean organism Tribrachidium had surprising findings about the more complex-than-thought eating methods of some 555 million years ago.