Understanding K-Pg Events Impact on Mammalian Evolution

The K-Pg event (Cretaceous–Paleogene) was a mass extinction that led to the demise of dinosaurs and set the stage for mammals to diversify. Key points:

• The asteroid impact caused widespread environmental changes, including reduced sunlight and temperature drops.
• This created niches for small mammals, allowing them to grow larger and more diverse.

Mammals survived due to their smaller size, which allowed them to find shelter in burrows or underground, avoiding the harsh conditions post-impact. Over time, they adapted to various environments, leading to the vast array of species we see today.

Pro tip: Understanding these events helps explain why mammals were not as affected by the K-Pg event compared to dinosaurs, setting the stage for their dominance in the Cenozoic era.