Betül explores the fascinating world of bacteria, highlighting the importance of cyanobacteria and E. coli in understanding ancient life and evolutionary processes. She explains the critical role of nitrogen-fixing bacteria in converting atmospheric nitrogen into usable forms for cellular functions, emphasizing that there is only one known mechanism for nitrogen fixation that has persisted for billions of years. The discussion unveils the intricate connections between biology and geology, shedding light on fundamental innovations in life on Earth.
