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Hesperornis

Leina le raya: “western bird”1

E jele: DitlhapiDinonyane tsa ntlhaBofelo jwa Cretaceous

Hesperornis was a giant swimming bird that lived in the time of dinosaurs. It had teeth in its beak and could not fly, but it was a super diver in the ancient seas.1 2

E tshetse

dimilione tsa dingwaga di le 90 go ya go 66 tse di fetileng5

Bofelo jwa Cretaceous

Difosili di fitlhetswe kwa

North America (Kansas, Montana, South Dakota, Alaska, Canada), Russia, and Sweden5 1

Boleele

1.5 go ya go 1.8 m (4.9 go ya go 5.9 ft)1

Bokete

10.6 kg (23 lb)1

Bogodimo

0.81 m (2.7 ft)

kakanyo

Bonako jo bogolo

e ka nna 16 km/h (10 mph)

Go thuma, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le kgolo go le kae?

E ne e le telele go le kae?

E ne e le kwa godimo go le kae?

kakanyo

E ne e le bokete go le kae?

bokete jaaka dikatse tsa mo gae di le 2.5

telele jaaka dikatse tsa mo gae di le 4 go tswa kwa nkong go ya kwa mogatlengtelele jaaka dibanana di le 10 di latelanabokete jaaka dibanana di le 88e ne e ka thuma boleele jwa letamo le legolo la go thuma (50 m) mo metsotswaneng e le 11

Hesperornis e ne e le kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sebatling sa gago. Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E ne e le bonako go le kae?

Motho yo o tsamayang e ka nna 5 km/h (3 mph)

Ngwana mo baesekeleng e ka nna 12 km/h (7 mph)

Hesperornis e ka nna 16 km/h (10 mph)

Pitse e e sianang ka bonako e ka nna 65 km/h (40 mph)

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

dilo tse di monate

Dintlha tse di monate

Hesperornis was one of the first birds to give up flying and become a full-time swimmer.2

Its legs were placed far back on its body, like a loon, making it clumsy on land but a powerful diver.1

Hesperornis had teeth in its beak, which is rare for birds. It used them to catch fish.1 2

The first fossils of Hesperornis were found by famous fossil hunter Othniel Charles Marsh in 1870 in Kansas.1 2

Several species of Hesperornis lived from about 90 to 66 million years ago, during the Late Cretaceous.5

Hesperornis fossils have been found in many places, including Canada, the United States, Russia, and Sweden.5

Setshwantsho sa Hesperornis se se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Hesperornis e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.

o botsitse

Dipotso tse di botswang thata ka ga Hesperornis

?How big was Hesperornis?

About 1.5 to 2 metres (4.9 to 6.6 ft) long and weighed around 10.6 kilograms (23 lb).1

?Did Hesperornis have teeth?

Yes, it had teeth in its beak, which is rare for birds. The teeth sat in a groove, not in individual sockets.1

?Could Hesperornis fly?

No, it could not fly. Its wings were tiny and useless for flight, and its breastbone lacked a keel for flight muscles.1 3

?What did Hesperornis eat?

It ate fish, which it caught with its tooth-lined beak while diving in the sea.4

?When did Hesperornis live?

It lived during the Late Cretaceous period, about 83.6 to 72 million years ago, and possibly into the early Maastrichtian.1

?Where was Hesperornis found?

Fossils have been found in Kansas, Canada, Russia, Sweden, and other places, mostly in marine rocks.1

?Could Hesperornis walk on land?

It was clumsy on land. Its legs were placed far back, so it probably pushed itself along on its belly like a seal.1

Mothubi wa ditlhamane

Tlhamane: Some people think Hesperornis was a dinosaur.

Boammaaruri: Hesperornis was a bird, not a dinosaur. Birds evolved from dinosaurs, but Hesperornis itself is classified as a bird.1

Ya baitseanape ba didino

Leina la saense: Hesperornis
Leina le neilwe ke: Marsh 18725
Setlhopha: Dinonyane tsa ntlha
Lelapa / clade: Hesperornithidae5
Thulaganyo: Theropoda > Avialae5
Bogolo jwa matlapa: 90 go ya go 66 dimilione tsa dingwaga (Coniacian / Maastrichtian)5
Dibopego tsa matlapa: Pierre Shale, Rybushka, Niobrara5
Dinaga: Khanata, Amerika, Rašia, Swedene5
Direkoto tsa difosili: 65 mo The Paleobiology Database5
E itsiwe gape e le: Coniornis, Hargeria, Lestornis (maina a bogologolo jaanong a balwa jaaka phologolo e le nngwe)5
Go fitlhelwa: Othniel Charles Marsh discovered the first Hesperornis fossil in 1870 near the Smoky Hill River in Kansas. He named it Hesperornis regalis in 1872.1 2
Go sa ntse go ganetsanwa: Scientists are still debating exactly how many species of Hesperornis existed, because many fossils are incomplete.1

Kwa dintlha di tswang teng

Hesperornis (en.wikipedia.org)
The Hesperornithiformes: A Review of the Diversity, Distribution, and Ecology of the Earliest Diving Birds (mdpi.com)
Hesperornis - Scholars | Britannica Kids | Encyclopedia (kids.britannica.com)
Hesperornis Facts, Artwork, Information - National Geographic | National Geographic (nationalgeographic.com)
Hesperornis in The Paleobiology Database (CC BY 4.0): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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