Kev yoog rau bipedalism suav nrog " stacking" feem ntau ntawm qhov hnyav ntawm lub cev hla thaj chaw me me nyob ib ncig ntawm qhov chaw ntawm lub ntiajteb txawj nqus(piv txwv li, lub taub hau saum lub hauv siab, uas yog saum lub pelvis, uas yog tshaj lub hauv caug, uas yog saum ko taw).
Yuav ua li cas tib neeg lub cev pob txha hloov mus rau bipedalism?
Cov kab vertebral ntawm tib neeg siv ib qho rau pem hauv ntej khoov hauv lub lumbar (qis) cheeb tsam thiab rov qab khoov hauv cheeb tsam thoracic (sab sauv). Yog tsis muaj lub lumbar nkhaus, lub vertebral kem yuav ib txwm lean rau pem hauv ntej, ib txoj hauj lwm uas yuav tsum tau ntau npaum li cas cov nqaij ntshiv rau cov tsiaj bipedal.
Puas yog bipedalism yog kev hloov kho?
Bipedalism yog ib qho qhov tseem ceeb hloov pauv ntawm Hominin progenyuas suav tias yog lub zog loj tom qab ntau qhov kev hloov pauv ntawm lub cev sib koom los ntawm txhua tus bipedal hominins (Lovejoy 1988. … Muaj cov kev xav sib txawv uas. piav qhia yuav ua li cas thiab yog vim li cas bipedalism hloov zuj zus nyob rau hauv tib neeg.
pob txha bipedal yog dab tsi?
Bipedalism, ib hom kev ua haujlwm loj, koom nrog kev txav mus los ntawm ob ko taw. Skeletons Ntawm Tib Neeg Thiab Gorillas Muab piv.
Ib co piv txwv ntawm bipedalism yog dab tsi?
Tib neeg, noog, ntau lizards thiab (ntawm lawv qhov siab tshaj plaws) cockroaches khiav bipedally. Kangaroos, qee cov nas thiab ntau cov noog dhia bipedally, thiab jerboas thiab crows siv kev hla mus. Daim ntawv no tsuas yog hais txog kev taug kevthiab khiav bipeds. Chimpanzees taug kev nrog lawv lub hauv caug khoov thiab lawv nraub qaum nqes mus rau pem hauv ntej.
