How long did the primeval times last? Why were there hippos in the Rhine? Who spoke the first word? How did people live in the stone age? Why are we all Africans? What happened in Jurassic Park? How were the continents formed? How did reptiles become mammals? How does life come into being? How loud was the big bang? Stephanie Müller and Friedemann Schrenk answer these and many other questions in a knowledgeable and understandable way for everyone. The book contains very simple questions, some of which are not so easy to answer, and some difficult ones that are surprisingly easy to answer.