How do we know dinosaurs didn't have fur? Why are they shown like

Did any dinosaurs have fur-like feathers that covered their whole body like a blanket, or just some spots on their bodies? - Quora

Dinosaur Facts American Museum of Natural History

I'm genuinely curious, how do we know some dinosaurs (e.g., Triceratops) were reptiles and not mammals or something else entirely (neither reptile nor mammal)? - Quora

What dinosaur species had fossilized skin? And what color were they? - Quora

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Jurassic Park' was wrong: Study suggests raptors didn't hunt in packs - Science in the News

What is the reason that some artists choose to depict dinosaurs with feathers on their bodies instead of keeping them scaly and reptilian? - Quora

How do we know dinosaurs didn't have fur? Why are they shown like a reptile? - Quora

Dinosaurs: now in colour - BBC Science Focus Magazine

A Velociraptor Without Feathers Isn't a Velociraptor

Did the dinosaurs have genitals? If so, why are they're not displayed in films and what do they look like? - Quora

How do we know which dinosaurs did and didn't have fur? - Quora

Therizinosaur, Therizinosaurus, Gigantoraptor, Herbivore