This episode explores how life evolved the ability to reproduce — the mechanism that allows organisms to continue beyond their own lifespans. It begins with the simplicity of asexual reproduction, such as binary fission, budding, and fragmentation, which provided efficiency but little genetic variation. Then it examines the rise of sexual reproduction about 1.2 billion years ago, highlighting how the combination of gametes introduced variation and gave life a powerful evolutionary advantage. The episode discusses the evolutionary “lottery” of sex, diverse reproductive strategies in plants and animals, and the balance between quantity and quality of offspring. It also touches on unusual adaptations, from seahorse fathers to plants using insects as pollinators. Ultimately, reproduction is presented as life’s greatest strategy for continuity and immortality — ensuring the unbroken survival of genes across billions of years, all the way to us.