Mchira wa munthu - osati chizindikiro cha mdierekezi, monga chikumbutso cha makolo lakutali

Nthawi imene ana anabadwa ndi mchira, akhala kudziwika ndi yatchedwa nthawi zambiri. Zaka mazana mazana apitawo, mchira wa munthu grisly European, ndi tsogolo la ana Kalanga tailed, kuvomereza atumiki Mdyerekezi, anali wachisoni. Pa nthawi yomweyo, mwana woteroyo ndi mwayi kwambiri, ngati iye anabadwa mu India. Mmodzi wa milungu akulemekezedwa mu chi Hindu - Hanuman nyani - akulongosoledwa kwambiri epic "Ramayana". ana Tailed ankaona atumiki chopatulika cha Hanuman. Angelezi alimbane kilometre ima pamzere, monga kukhudza mchira Mulungu ndi kupeza madalitso ...

Mchira wa anthu - ndi atavism, si ntchito mofanana anyani ang'onoang'ono. Kuchita izi, izo ziyenera monga minofu ndi vertebrae, koma iwo siali. Ndipamene minofu embryonic kukachitika kuti chitukuko cha mwana wosabadwayo anthu pang'ono kumbali mwakale, koma zimachitika kawirikawiri. Pa nthawi yomweyo, mchira wa munthu ngati ndondomeko atavistic - ndi zowonekeratu kuti makolo Homo sapiens mchira mosakayikira, analipo.

N'chifukwa chiyani iwo anachitaya icho? Tayang'anani pa khalidwe la anyani ang'onoang'ono (macaques, anyani). Mchira masewero kwa iwo udindo wa dzanja wachisanu. Iye ndi wamphamvu kamatha kuchititsa kulemera kuwala, kumasula nthambi. Ndi kukula kwa thupi nyani mchira minofu makulidwe anawonjezeka mofulumira mpaka unakhala chopinga kukhalako kwa zinthu zomwe mulibe nthawi yaitali kukangamira pa mitengo.

Ndi zamoyo wa makolo nyani ngati anthu (kayendedwe pansi, tinganene kuti kuyenda nji pa miyendo yake yaikazi), mchira wa munthu wokhalapo ankamuthandiza ndi kukwaniritsa thupi "mwa ntchito" ndipo mbisoweka monga zosafunika. Ntchito yake bwinobwino ankaganiza ndi matupi ena. Koma mtembo wake adakali pano mu mafupa anthu - ndi tailbone.

Izo zinkakhala kuti munthu ndi mchira mu Chiyambi chake amasonyeza zamoyo wa cnidarian Hydra - kudzera siteji nsomba ndi makutu - kudzera siteji nyama ndi mchira - kuti zoona, anthu. asayansi aakulu akhala motsimikiza kuti irrefutably zikutsimikizira Darwin pa chiyambi cha munthu ndi dziko nyama. Izi ndi zoona, koma chitukuko cha mwana wosabadwayo alibe ubale kuti: kuyambira nthawi yake yoyamba, iye ndi munthu ndipo wina.

Mchira wa mwana wosabadwayo anthu pa siteji chifukwa cha kuchuluka kwa vertebrae, linali m'mimba (38 ndi 33-34 wamkulu) - kotero kunena, pasadakhale, polingalira chitukuko pang'onopang'ono poyerekeza ndi zina. Zikuoneka kumayambiriro a 1 ndi 2 na- miyezi chitukuko embryonic. Ndiye, m'mwezi wachitatu, ndi tsankho kukonzanso kwa mafupa ndi kudula-kumbuyo "owonjezera" vertebrae. mwana wabadwa kale ndi msana yachibadwa. Ine ndikubwereza: kubadwa kwa mwana ndi throwback hvostoobraznogo ndondomeko ya minofu zofewa ali osowa kwambiri. Koma ngati zinachitika - osadandaula. Monga m'masiku oyambirira a moyo khanda la siidzasoŵa njira yosavuta opaleshoni. Popeza kuti wakhanda ali ndi luso mkulu buluzi minofu, opaleshoni pafupifupi nthawi zonse akuthamanga popanda matendawo.