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Have you ever wondered how the mighty dinosaurs first began? Close your eyes and travel back 252 million years to the Triassic period! After a massive, fiery event called the Great Dying wiped out almost all life on Earth, a tough group of reptiles called archosaurs survived. But there was a catch—they wiggled side-to-side like lizards when they walked! This side-to-side wiggling made it impossible to run and breathe at the same time. Then, evolution unlocked an amazing superpower! Over millions of years, these ancient reptiles learned to stand upright on two legs. By tucking their legs directly under their bodies, they could sprint super fast and catch their breath at the exact same time! Meet the very first dinosaur relatives, like the dog-sized Nyasasaurus with its massive tail, and the tiny 20-pound Eoraptor, known as the dawn plunderer. Join Mira and Finn on an epic prehistoric adventure to discover how standing up straight changed the entire world! You will learn how these tiny, fast sprinters eventually grew into massive 70-ton giants and went on to rule our planet for 160 million years! Get ready for some mind-blowing fossil facts!

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