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Weird interstellar comet 3I/ATLAS is breaking the rules of space physics

The interstellar comet 3I/ATLAS arrived looking like a routine icy visitor and then promptly started shredding the rulebook ...

Humans broke one of evolution’s basic rules by losing fur — and survived

For most mammals, fur is essential for survival. Humans lost it anyway and didn’t just survive, they adapted. Fossil and ...