No, not exactly. Initially, it’s merely a hypothesis. The article somewhat sensationalizes the professor’s statements. The evolution of mammals was influenced by many factors, including the presence of other species like reptiles or dinosaurs. These species already occupied certain niches, compelling mammals to adapt in various ways, including developing shorter lifespans—a trait beneficial for evolution. It’s not just the dinosaurs that are responsible, but rather the entire set of circumstances leading to human existence. The professor is attempting to pinpoint specific factors contributing to this evolutionary path.