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Karete ya dinosaure No. 1238 ho tse 2 027

Nanuqsaurus

Lebitso le bolela: “polar bear lizard”1

E jele: NamaDitiranosaureKretase ya Morao

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

E phetse

dilemo tse dimilione tse 72 ho isa ho 66 tse fetileng5

Kretase ya Morao

Difosili di fumanwe ho

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

Bolelele

5 ho isa ho 9 m (16 ho isa ho 30 ft)3 4

Boima

500 kg ho isa ho ditone tse 1.9 (1,100 ho isa ho 4,200 lb)3

Bophahamo

2.9 m (9.5 ft)

kakanyo

Lebelo le phahameng ka ho fetisisa

e ka bang 36 km/h (22 mph)

Ho matha, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e le telele hakae?

E ne e phahame hakae?

kakanyo

E ne e le boima hakae?

boima jwaloka dikoloi tse 1.5

telele jwaloka dikoloi tse 2 tse pakilweng ka molatelele jwaloka dibanana tse 50 di behilwe ka molaboima jwaloka dintja tse 95boima jwaloka mahapu a 380boima jwaloka bana ba kereshe ba 100boima jwaloka bana ba sekolo ba 59boima jwaloka dibere tse tshweu tse 4e ne e ka matha dimitara tse 100 ka metsotswana e 10 (motho ya lebelo ka ho fetisisa o hloka 9,6)

Nanuqsaurus e ne e le kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ho browser ya hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Nanuqsaurus e ka bang 36 km/h (22 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

Setshwantsho sa Nanuqsaurus se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Nanuqsaurus e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka 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

Mosenyi wa ditshomo

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

Nnete: 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

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Nanuqsaurus
E rehilwe ke: Fiorillo and Tykoski 20145
Sehlopha: Ditiranosaure
Lelapa / leloko: Tyrannosauridae5
Tlhophiso: Theropoda > Tyrannosauroidea > Tyrannosauridae5
Dilemo tsa mafika: dilemo tse dimilione tse 72 ho isa ho 66 (Maastrichtian)5
Dibopeho tsa mafika: Prince Creek5
Dinaha: Amerika5
Direkoto tsa difosili: 1 ho The Paleobiology Database5
Ho sibollwa: 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
E sa ntse e phehwa kgang: 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

Moo dintlha di tswang teng

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): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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