[Lee Stewart]

When most people hear the word "fossils," they likely think of dinosaurs, but scientists can learn a lot from the fossilized remains of organisms of all sizes. In 2017, researchers announced they had discovered tiny bacteria fossils in layers of quartz found in Canada that are believed to be at least 3.8 billion years old. Scientists believe these fossils can help us learn about the very first lifeforms that took shape after Earth formed.