मानव का उद्भव और विकास

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yah panna manav ka udbhav aur vikas lekh ke sanbandh mean prakashit samachar hi darshata hai. is prakar ke samachar bharatakosh par anek lekhoan ke shirshak chunane mean sahayak hote haian. yah lekh ki adhar avastha hai. ise pragati ki or le jane ka kary prarambh kiya jana hai. ap bhi isamean sahayata kar sakate haian.

manushy ka sabase purana poorvaj mila

shukravar, 9 sitanbar, 2011

puravijnaniyoan ne ek avashesh ka pata lagaya hai. yah manushy ka sabase purana poorvaj hai jo lagabhag 20 lakh varsh poorv prithvi par paya jata tha. yah bandar jaisa dikhata hai aur isaka nam 'astrelopithikas sediba' hai. yah dakshin aphrika ki ek gupha mean paya gaya tha aur ise kapi aur manav ke bich ki khoee huee kadi kaha ja raha hai. is prani ke mastishk, koolhe, hathoan aur paanv ke ne vivaranoan se pata chala hai ki isamean praranbhik manav ke sath-sath adhunik manav ke bhi gun haian. in gunoan ke chalate vaijnanikoan ka manana hai ki yah jiv homo jinas ka poorvaj hone ka sarvashreshth ummidavar hai. in jivashmoan ki ayu 19 lakh 77 hazar varsh ke asapas mani gee hai. jo jivashm itihas mean homo parivar ke gunoan ki sabase purani khoj hai. ab tak pae ge sabase purane jivashmoan ki ayu 19 lakh sal hai. inamean se adhikaansh homo haibilis aur homo ryoodopheansis ke haian. inhean homo irektas ka poorvavarti mana jata hai aur nishchit taur par ve manushy ke nirvivad poorvaj haian.

samachar ko vibhinn srotoan par padhean

tika tippani aur sandarbh

bahari k diyaan

sanbandhit lekh

varnamala kramanusar lekh khoj

a a i ee u oo e ai o au aan k kh g gh n ch chh j jh n t th d dh n t th d dh n p ph b bh m y r l v sh sh s h ksh tr jn rri rri aau shr aah