Dinosaurs: A Concise Natural History < 99% Recent >

Roughly 66 million years ago, the reign of the non-avian dinosaurs ended abruptly. A massive bolide impact in the Yucatan Peninsula, combined with intense volcanic activity from the Deccan Traps, triggered a global "impact winter." Photosynthesis collapsed, and three-quarters of all species perished.

One of the most significant discoveries of the last 30 years is that many theropods—including relatives of the T-Rex—were covered in feathers. These weren't for flight initially, but likely for insulation, display, or brooding eggs. 4. The K-Pg Extinction and the Living Legacy Dinosaurs: A Concise Natural History

Dinosaurs: A Concise Natural History The story of the Dinosauria is not merely a tale of "terrible lizards" that vanished in a puff of smoke; it is a 165-million-year epic of biological innovation, global dominance, and an eventual transition that continues right outside our windows today. To understand dinosaurs is to understand the fundamental principles of evolution, plate tectonics, and the resilience of life on Earth. 1. The Triassic Dawn: A Humble Beginning Roughly 66 million years ago, the reign of

By the Jurassic period, the supercontinent Pangea began to break apart, creating new coastlines and diverse climates. This environmental shift triggered an evolutionary explosion. We see the rise of the —the long-necked titans like Brachiosaurus —which became the largest land animals to ever walk the Earth. These weren't for flight initially, but likely for