Look up: the most common dinosaur is in your backyard
In short: The asteroid that struck Earth 66 million years ago didn't wipe out all dinosaurs; it simply pruned the family tree. While the giants fell, a specific lineage of small, feathered survivors endured. Today, you don't need to travel to a remote jungle to find them—they are everywhere.
The common narrative of dinosaur extinction often focuses on the total annihilation of these creatures by a massive asteroid impact. In 1977, geologist Walter Alvarez identified high concentrations of iridium—a metal rare on Earth but common in meteorites—in clay layers dating to the end-Cretaceous period. This led to the theory that an asteroid roughly 6 miles (10 kilometers) across struck the Yucatán Peninsula 66 million years ago. Global wildfires erupted and a 'dust blanket' obscured sunlight for centuries as trillions of tons of molten rock and dust were propelled into the atmosphere by the disaster.
This environmental collapse proved fatal for large-bodied species. Without sunlight, plants died off, causing massive herbivores like Triceratops to perish quickly from starvation. However, some smaller avian dinosaurs possessed traits that allowed them to survive the freezing temperatures and food shortages. These survivors eventually evolved into the modern birds we see today. Paleontological evidence, including feather imprints and fossil records of species like Archaeopteryx, confirms that birds are not just related to dinosaurs—they are living dinosaurs.
This means that while there is no evidence of 'rumbling' giants like Apatosaurus or T. rex surviving in remote forests, the theropod lineage remains active. Every ordinary chicken belongs to the same evolutionary line as these prehistoric predators. The transition from ground-dwelling dinosaurs to flight-capable birds was a major shift in science, revealing that feathers did not originally evolve for flight but were part of a survival strategy that ultimately allowed one group to persist while all non-avian dinosaurs vanished.
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Sources
- Summary by Intellect · source: Dinosaurs Are Not Extinct... They Are Still Among Us!
- Also: Could dinosaurs still exist somewhere in the world? A paleontologist explains
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