A Rhoomba vacuum might mimic a hungry lifeform, but researchers have found ancient fossils of one of Earth's first animals, ...

Today it represents something quite different: a set of extraordinary clues, recently reinterpreted, to one of the deepest and most puzzling mysteries of life on Earth. After burbling along for ...

dramatically. It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the fossil record — the ancestors of all major animal groups ...

The biologist had just come from the first floor ... oldest animals on Earth — quite possibly a sister to all other animals in the tree of life, so “they provide a really unique opportunity ...

From 4.6 billion years ago when the Earth was red hot, the timeline illustrates the evolution of the first life forms through ... How have animal skeletons adapted? videoHow have animal skeletons ...

Over 390 million years ago, the ancestors of modern land animals said, “Feet before fins,” and took their first steps on earth ... ever before into one of life’s greatest evolutionary ...

The first creatures ... all the animals depending on that ice for hunting, resting, reproducing, and other key life activities lose the platform on which their existence depends. At the other end of ...