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Janavis

Hiika maqaa: “Janus bird, after the Roman god of beginnings and endings”1

Kan nyaate: FoonSimbirroota jalqabaaKireetaashasii Dhumaa

Janavis was a toothed bird that lived right at the end of the Age of Dinosaurs. It was one of the last birds with teeth, and its skull could move like a modern bird's skull.1

Kan jiraate

waggaa miliyoona 72 hanga 66 dura3

Kireetaashasii Dhumaa

Fosiliiwwan kan itti argaman

Eben Emael, Belgium1

Bal'ina baallee

1.5 m (4.9 ft)1

Ulfaatina

1.12 kg hanga 1.604 kg (2 hanga 4 lb)1

Saffisa ol'aanaa

gara 42 km/sa'a (26 mph)

Balali'uu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam guddaa ture?

Baalleen isaa hammam bal'aa turan?

Hammam ulfaataa ture?

akka muuzii 13 ulfaata

akka adurree manaa 3 funyaan hanga eegeetti dheeraaadurree manaa caalaa salphaaakka muuzii 13 ulfaatadirree kubbaa miilaa guutuu sekondii 9 keessatti balali'ee ce'uu danda'a

SI wajjin yoo wal bira qabamu, Janavis hammam guddaa ture?

Herrega qofa barbaadduu kee keessatti. Wanti tokkollee hin olkaa'amu, eessayyuu hin ergamu.

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Janavis gara 42 km/sa'a (26 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Janavis lived about 66.8 million years ago, just 800,000 years before the asteroid that killed the dinosaurs.1

Its wing bones were hollow and filled with air, like modern birds, making it lighter for flying.1

The fossil was found in a Belgian quarry in 2000 by an amateur fossil hunter named Rudi Dortangs.1

Janavis had a skull that could move its upper jaw up and down, a feature of modern birds called neognathous palate.1

Scientists first thought a piece of its skull was a wing bone, until a CT scan in 2021 showed the truth.1

Janavis was bigger than its relative Ichthyornis, with a wingspan of about 1.5 metres (5 feet).1

Fakkii AI'n hojjetame: Janavis — Fakkii AI'n hojjetame kan Janavis maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

ati gaafatte

Gaaffiiwwan waa'ee Janavis baay'ee gaafataman

?How big was Janavis?

Janavis was a relatively large bird, with an estimated wingspan of about 1.5 metres (5 feet) and a weight of around 1.5 kilograms (3.3 pounds).1 2

?Did Janavis have teeth?

Yes, Janavis had teeth. It was one of the last toothed birds to ever live.1 2

?When did Janavis live?

Janavis lived about 66.8 million years ago, right at the end of the Cretaceous period, just 800,000 years before the asteroid impact.1

?Could Janavis fly?

Yes, Janavis could fly. Its wing bones were hollow and filled with air, like modern birds, making it lighter for flying.1

Seenaa sobaa diigaa

Seenaa sobaa: All ancient birds had rigid skulls like dinosaurs.

Dhugaa: Janavis had a flexible skull like modern chickens and ducks, showing that movable skulls evolved early.1

Ogeeyyii daayinootiif

Maqaa saayinsii: Janavis
Kan maqaa baase: Benito et al. 20223
Garee: Simbirroota jalqabaa
Maatii / kilaadii: Ichthyornithes3
Ramaddii: Theropoda > Avialae3
Umurii dhagaawwanii: waggaa miliyoona 72 hanga 66 (Maastrichtian)3
Caasaawwan dhagaa: Maastricht3
Biyyoota: Beljiyeem3
Galmee fosilii: 1 The Paleobiology Database keessa3
Argannoo: The fossil was collected in 2000 by amateur palaeontologist Rudi Dortangs in Belgium. It was first reported in 2002, and in 2022 scientists named it Janavis finalidens after CT scans revealed its true identity.1
Ammallee falmisiisaa: Scientists debate whether Janavis could fly as well as modern birds, because its wing bones were very air-filled but its shoulder blade lacked a normal hook.1

Odeeffannoon eessaa dhufa

Janavis (en.wikipedia.org)
Bird beak evolved before dinosaur extinction | University of Cambridge (cam.ac.uk)
Janavis in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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