A recent study published in Science has shed new light on the debate surrounding the mass extinction of dinosaurs. The research, which focused on the Nakhon Phanom Group in New Mexico, has revealed that dinosaurs were still thriving in the area just before the asteroid impact that led to their extinction. The study found that the dinosaur population in the area was not declining, but rather maintaining a high level of diversity, with different species adapting to the changing climate. This challenges the long-held theory that dinosaurs were in decline before the asteroid impact. The research also suggests that the extinction event was sudden and catastrophic, rather than a gradual decline. The study's findings have significant implications for our understanding of the history of life on Earth and the impact of asteroid collisions on the planet's ecosystems. Further research is needed to confirm the results and to better understand the complex relationships between dinosaurs, climate, and asteroid impacts.