Dinosaurs puas muaj plaub hau?

Cov txheej txheem:

Dinosaurs puas muaj plaub hau?
Dinosaurs puas muaj plaub hau?
Anonim

Ntau tus dinosaurs muaj plaub. … “Zoo li los ntawm qhov deb nws zoo li plaub mos mos,” Martill hais. "Zoo li nws muaj cov plaub hau zoo li cov plaub hau ntau dhau ntawm nws lub cevtab sis lawv tsuas yog khaws cia raws nws caj dab, nraub qaum thiab caj npab. Cov nyob ntawm nws nraub qaum yog ntev heev thiab muab nws ib hom mane uas yog tshwj xeeb rau dinosaurs."

Peb puas paub yog tias dinosaurs muaj plaub hau?

Thawj cov pob txha dinosaur nrog cov qauv uas tuaj yeem txiav txim siab feathers tau pom nyob rau xyoo 1990. … Los ntawm 2011 qee qhov kev tshawb fawb txawm hais tias txhua tus dinosaurs muaj qee hom feathery npog ntawm yam tsawg kawg ntawm lawv lub cev-zoo ib yam li txhua tus tsiaj muaj plaub hau tab sis tsis yog txhua tus tsiaj muaj plaub hau.

Dinosaurs Puas muaj plaub hau lossis plaub?

Txhua tus dinosaurs tau npog nrog plaub lossis muaj peev xwm loj hlob plaub, kev tshawb fawb qhia. Qhov kev tshawb pom ntawm 150-million-xyoo-laus fossils nyob rau hauv Siberia qhia tau hais tias feathers tau dav ntau ntawm dinosaurs dua li yav dhau los xav.

Dinosaur muaj plaub hau dab tsi?

Cov lus nug tau dhau los tsis yog tias cov plaub yog qhov tshwj xeeb rau cov noog, tab sis seb lawv puas tshwj xeeb txawm rau dinosaurs. Fuzzy plaub hau zoo li cov fibers nco txog ntawm dinosaur "protofeathers" tau paub rau qee lub sijhawm hauv pterosaurs.

Cov plaub hau puas tuaj yeem khaws cia hauv pob txha?

Thaum nws los khaws cia lub cev, cov plaub hau fossilized yog tsawg - tsib zaug tsawg dua li plaub - txawm tiasyog ib qho cuab yeej tseem ceeb rau kev nkag siab txog hom qub. … Tab sis, raws li txoj cai, tom qab ib tug tsiaj tuag txawm ilv lub cev npog zoo li daim tawv nqaij, cov plaub hau thiab plaub tuaj yeem khaws cia.

Pom zoo:

Nthuav cov khoom
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