This is a summary of the first chapter of Life on the Edge: The Coming of Age of Quantum Biology. This introductory chapter explores the European robin's navigational abilities, using its migration as a case study to examine the role of quantum mechanics in biology. The text posits that the robin uses a quantum compass, based on entangled radical pairs, to sense the Earth's magnetic field. This exploration leads to a broader discussion of quantum phenomena in living organisms, highlighting the surprising ways quantum mechanics impacts seemingly ordinary biological processes. The chapter concludes by emphasizing the potential significance of this emerging field of quantum biology, urging further investigation into the fundamental relationship between quantum mechanics and life itself.