Our ancient four-legged ancestors didn't have an amphibian-like life cycle when they began walking on land, according to a new study of rare fossils found near Chicago.
Source: [Live Science](https://www.livescience.com/animals/extinct-species/a-completely-different-story-300-million-year-old-fossils-reveal-the-first-vertebrate-land-dwellers-werent-what-we-thought-researchers-claim)