Taylor asked Li Yu, "You know humans haven't always been the masters of Earth, right? Many powerful creatures existed on this planet before us, but none survived ultimately."
"Are you talking about mass extinctions?"
"Exactly, there have been five major mass extinction events in Earth's history: in the Ordovician, Devonian, Permian, Triassic, and Cretaceous periods.
"And mammals, including our ancestors, only emerged onto the historical stage in the Tertiary period."
Taylor said, "Our evolution to the current civilization relied not only on our intelligence and effort but also on luck, with climate being a particularly crucial factor."
"Imagine if our ancestors had also been present during the previous five mass extinctions, with their fragile bodies, they too would not have survived the dramatic climate changes.
"In fact, even throughout the millions of years of human existence, our civilization has always been deeply influenced by climate."
