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the claim

Dinosaurs were cold-blooded.

the verdict
CONTESTED PARTIAL
Recorded sources
1 source for · 7 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that dinosaurs were cold-blooded?

Partly. Reference works and a museum news piece indicate the blanket cold-blooded view has been superseded, with evidence pointing to elevated or bird-like metabolisms in at least some dinosaurs, while a children's comprehension text still asserts dinosaurs were cold-blooded. The sources support only a partial, mixed picture rather than settling the claim either way.

Verdict: CONTESTED PARTIAL · 1 source for, 7 against · Last checked

Evidence for · 1
Comprehension : reading for understanding, grade 3
1992
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Comprehension : reading for understanding, grade 3. (1992). archive.org. https://archive.org/details/comprehensionrea0000unse

Evidence against · 7
Dinosaur
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Dinosaur. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Dinosaur

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More against · 6
Were dinosaurs 'hot-blooded' or 'cold-blooded'?
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Were dinosaurs 'hot-blooded' or 'cold-blooded'?. (n.d.). biology.stackexchange.com. https://biology.stackexchange.com/questions/1756

Encyclopedia of Dinosaurs
1997
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Encyclopedia of Dinosaurs. (1997). archive.org. https://archive.org/details/encyclopediaofdinosaurs_201912

Rediscovering the Age of Dinosaurs: Episode 17, Were Dinosaurs Warm-Blooded?
2025
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Rediscovering the Age of Dinosaurs: Episode 17, Were Dinosaurs Warm-Blooded?. (2025). kanopy.com. https://www.kanopy.com/node/14658383

Dinosaurs may have evolved from warm-blooded ancestor | Natural History Museum
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Dinosaurs may have evolved from warm-blooded ancestor | Natural History Museum. (n.d.). nhm.ac.uk. https://www.nhm.ac.uk/discover/news/2022/may/dinosaurs-may-have-evolved-from-warm-blooded-ancestor.html

How to write a great school report
1983
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Elizabeth, J. & Carol, B. (1983). How to write a great school report. archive.org. https://archive.org/details/howtowritegreats00jame

dinosaurs-the-encyclopedia-pdfdrive
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dinosaurs-the-encyclopedia-pdfdrive. (n.d.). archive.org. https://archive.org/details/dinosaurs-the-encyclopedia-pdfdrive

Receipt History
held for human review16 Oct 2026
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