feathered dinosaurs
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Did the World’s Best-Preserved Dinosaurs Really Die in ‘Pompeii’ Events?
A new study throws cold water on the long-accepted dogma that exquisitely preserved fossils found in China were the result of cataclysmic volcanic eruptions.
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Dinosaurs Took Over Amid Ice, Not Warmth, Says a New Study of Ancient Mass Extinction
There is new evidence that ancient high latitudes, to which early dinosaurs were largely relegated, regularly froze over, and that the creatures adapted—an apparent key to their later dominance.
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Hell’s Chicken
From our great, wild west, those rusty, dusty hills, Bones of a beast who would give a cowboy chills. A fierce-looking crest – a mohawk made of bone! Claws, beak, bony tail, locked within hard stone.

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
