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Kaadi ya dayinoso No. 1238 ku 2 027

Nanuqsaurus

Erinnya litegeeza: “polar bear lizard”1

Yalyanga: EnnyamaTiranosawuluEnkomerero ya Kuretasi

Nanuqsaurus was a small, fierce tyrannosaur that lived in the ancient Arctic, where it was the top predator. It had a short snout and sharp teeth, and it hunted in a world with long, dark winters.1

Yabeerawo

emyaka obukadde 72 okutuuka ku 66 emabega5

Enkomerero ya Kuretasi

Ebisigalira byazuulibwa mu

North Slope of Alaska, USA, in the Prince Creek Formation1

Obuwanvu

5 okutuuka ku 9 m (16 okutuuka ku 30 ft)3 4

Obuzito

500 kg okutuuka ku ttani 1.9 (1,100 okutuuka ku 4,200 lb)3

Obugulumivu

2.9 m (9.5 ft)

kuteebereza

Sipiidi esinga

nga 36 km/h (22 mph)

Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

Yali munene atya?

Yali muwanvu kwenkana wa?

Yali mugulumivu kwenkana wa?

kuteebereza

Yali muzito kwenkana wa?

obuzito ng'obw'emmotoka 1.5

obuwanvu ng'emmotoka 2 ezisimbiddwa mu lunyiririobuwanvu ng'amenvu 50 nga gaddiriŋŋanaobuzito ng'obw'embwa 95obuzito ng'obwa wotamerooni 380obuzito ng'obw'abaana 100 ab'omu nnasaleobuzito ng'obw'abaana b'essomero 59obuzito ng'obwa ddubu enjeru 4yandidduse mita 100 mu sikonda 10 (omuntu asinga embiro yeetaaga 9.6)

Nanuqsaurus yali munene atya bw'ogeraageranya ku GGWE?

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Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Nanuqsaurus nga 36 km/h (22 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

Nanuqsaurus was small for a tyrannosaur, with an estimated skull length of only 600 to 700 millimeters (about 2 feet) in adults.1

It lived at a paleolatitude of about 80 to 85 degrees north, meaning it experienced months of continuous darkness in winter.3

Its name comes from the Iñupiaq word 'nanuq' for polar bear, because it was a top predator in a cold, seasonal environment.1

Nanuqsaurus had a distinctive skull feature: the first two teeth in its lower jaw were much smaller than the ones behind them, which helped it bite in a unique way.1

It was closely related to the famous Tyrannosaurus rex, but much smaller, possibly because food was scarce in its Arctic habitat.1

The only known fossil is a partial skull, found in 2006, and it was initially mistaken for a different dinosaur called Gorgosaurus.1

Ekifaananyi kya Nanuqsaurus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku Nanuqsaurus

?How big was Nanuqsaurus?

Scientists first thought it was 5 to 6 meters long, but newer fossils suggest it may have grown to about 7 meters and weighed over 1.9 metric tons.3

?What did Nanuqsaurus eat?

As the top predator in its Arctic home, it likely hunted other dinosaurs like hadrosaurs and horned dinosaurs.3

?Did Nanuqsaurus have feathers?

Yes, it was likely covered in feathers for insulation against the cold.3

?Was Nanuqsaurus a dinosaur?

Yes, it was a theropod dinosaur and a close relative of Tyrannosaurus rex.3

?When did Nanuqsaurus live?

It lived during the Late Cretaceous, about 70 million years ago.4

?Why is it called Nanuqsaurus?

Its name means 'polar bear lizard' in Iñupiaq, because it was the top predator in the ancient Arctic.3

?Could Nanuqsaurus survive in the dark?

Yes, it lived through about 120 days of constant winter darkness each year and likely stayed in the Arctic year-round.3

?Is Nanuqsaurus bigger than a T. rex?

No, it was much smaller. T. rex was about 12 meters long, while Nanuqsaurus was only about half that size.4

Omumenyi w'enfumo

Enfumo: Some people think Nanuqsaurus was a baby Tyrannosaurus rex because it was small.

Amazima: Nanuqsaurus was a distinct species, not a baby. It had unique skull features and lived in the Arctic, while T. rex lived further south.1

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Nanuqsaurus
Yatuumibwa: Fiorillo and Tykoski 20145
Ekibinja: Tiranosawulu
Ekika / ekibinja: Tyrannosauridae5
Engabanya: Theropoda > Tyrannosauroidea > Tyrannosauridae5
Emyaka gy'enjazi: emyaka obukadde 72 okutuuka ku 66 (Maastrichtian)5
Ensengeka z'enjazi: Prince Creek5
Ensi: Amerika5
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database5
Okuzuulibwa: Nanuqsaurus was named by Anthony Fiorillo and Ronald Tykoski in 2014, based on a partial skull found in Alaska's Prince Creek Formation. The fossil was discovered in the Kikak-Tegoseak Quarry.1
Kikyakubaganyizibwako ebirowoozo: Scientists still debate why Nanuqsaurus was so small, with some thinking it was due to limited food in the Arctic, but others suggest it might have been a juvenile or a different factor.1

Ebituufu gye biva

A Diminutive New Tyrannosaur from the Top of the World (pmc.ncbi.nlm.nih.gov)
PBDB Taxon (paleobiodb.org)
Nanuqsaurus (en.wikipedia.org)
Diminutive dinosaur stalked the Arctic | Nature (nature.com)
Nanuqsaurus in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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