The first warm-blooded dinosaurs may have roamed Earth 180 million years ago

(15 May 2024)
UK WARM BLOODED DINOSAURS
SOURCE: ASSOCIATED PRESS
RESTRICTION SUMMARY:
LENGTH: 3.22
ASSOCIATED PRESS
ARCHIVE: New York, United States - 15 September 2020
1. Various of T-Rex head skeleton on exhibition for auction
ASSOCIATED PRESS
ARCHIVE: Paris, France - 31 August 2021
2. Various of Triceratops skeleton in the window of a Paris showroom
ASSOCIATED PRESS
London, UK - 14 May 2024
+VIDEO CALL+
3. SOUNDBITE (English) Alfio Alessandro Chiarenza, dinosaur palaeontologist, University College London (UCL)
"Since the late 60s, I guess, emerging evidence was starting to confirm that birds share like lots of features in common with dinosaurs and then eventually that got investigated to figure out the evolutionary link. So basically, now we know that birds are one group of dinosaurs, one of the only lucky ones that didn't die out during the asteroid catastrophe 66 million years ago. But there are lots of uncertainties of how these properties sort of linked, evolved. We've now thankfully documented with lots of new features in the fossil records. We now have evidence of feathers, for example, from dinosaurs from China. There are like other non tangible evidence which are more difficult to figure out."
ASSOCIATED PRESS
ARCHIVE: Bandholm, Denmark - 22 June 2023
4. Various of relative of Triceratops skull at Knuthenborg Safari Park
ASSOCIATED PRESS
London, UK - 14 May 2024
+VIDEO CALL+
5. SOUNDBITE (English) Alfio Alessandro Chiarenza, dinosaur palaeontologist, University College London (UCL)
"So we know for certain that, of course, there is a group of dinosaurs that is warm blooded, which is birds you know that's what they do and we know of course that they derive from these sort of very big reptilians which is the dinosaurs. We know that reptiles are not warm blooded so the ancestrally must have been dinosaurs probably, at least ancestrally, must have been cold blooded. So when did this change happen?"
ASSOCIATED PRESS
ARCHIVE: Chicago, United States - 18 December 2018
6. Various of a skeleton of Tyrannosaurus rex
ASSOCIATED PRESS
London, UK - 14 May 2024
+VIDEO CALL+
7. SOUNDBITE (English) Alfio Alessandro Chiarenza, dinosaur palaeontologist, University College London (UCL)
"Of course, we know, from modern biology that if something is able or capable of living in the Arctic or, you know, very cold regions, it means there must have have some ways of heating up and one of the most important way of heating up is, of course, your own metabolism, you know biology."
ASSOCIATED PRESS
ARCHIVE: Chicago, United States - 18 December 2018
8. Various of a skeleton of Tyrannosaurus rex
ASSOCIATED PRESS
London, UK - 14 May 2024
+VIDEO CALL+
9. SOUNDBITE (English) Alfio Alessandro Chiarenza, dinosaur palaeontologist, University College London (UCL)
"We can figure out a lot about their biology, how active they were, maybe if they were more social because we know that animals (living) densely are more social. So lots of things about reproduction, many, many, many components that will help us understand a little bit more about how these ecosystems were functioning. Because of course, we know that ecosystems, which are dominated by cold blooded animals, are quite different from the ones habited by warm blooded animals."
ASSOCIATED PRESS
ARCHIVE: Chicago, United States - 18 December 2018
10. Skeleton of Tyrannosaurus rex
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LEADIN:
The first warm-blooded dinosaurs may have roamed Earth 180 million years ago according to researchers who've studied over 1000 fossils and climate models.
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