It's a hard-fought debate: Did the massive asteroid that struck Earth 66 million years ago wipe out a thriving population of dinosaurs, or were they already struggling to survive when that cataclysmic day dawned? A fossil egg study has revealed insights.
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It’s a hard-fought paleontological debate.
The researchers said their finding from fossilized eggs was consistent with the fossilized dinosaur bones found in the same and surrounding region, although they did discover a few additional dinosaur bones from the region that show tyrannosaurs and sauropods also lived in the area between 66.4 million and 68.2 million years ago.
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