Tim Flannery, a climate advocate and author, along with his daughter Emma, unite to unravel the mystery of Megalodon, the largest predator in history. They discuss its astonishing size—10 humans long and capable of a bite that could take out two people. Paleontologists Erich Fitzgerald and Cheng-Hsui Tsai enhance the conversation, exploring the Megalodon's extinction and its ecological significance. Insights about ancient marine ecosystems, the adaptability of modern whales, and the role of amateur fossil collectors add depth to this fascinating dive into prehistoric mysteries.