Animal and human health are connected, and that link may be key to preventing the next pandemic. This episode explores cutting-edge research across Germany. In Greifswald, SHIP One Health tracks viruses and parasites in pets and livestock, spotting zoonotic threats like avian flu before they reach humans. In Münster, virologists use gain-of-function methods to study how viruses mutate — work that helps predict dangerous variants while fueling debate about lab safety. In Braunschweig, an AI-driven robot creates lab-grown mini-organs that could transform drug development and reduce animal testing. From pandemic preparedness to advanced lab science, we show how our health depends on animals and the environment. And yes, we even settle the age-old question: which came first, the chicken or the egg?