गृहपृष्ठ » अन्तर्राष्ट्रिय, मुख्य समाचारमानव प्रजातिको नयाँ जीव पत्ता लाग्यो

मानव प्रजातिको नयाँ जीव पत्ता लाग्यो

September 11, 2015२३८ पटक

A composite skeleton of H. naledi is surrounded by some of the hundreds of other fossil elements recovered from the Dinaledi Chamber in the Rising Star cave in South Africa. The expedition team was led by National Geographic Explorer-in-Residence Lee Berger of the University of the Witwatersrand. The find was announced by the University of the Witwatersrand, the National Geographic Society and the South African National Research Foundation and published in the journal eLife. Photo by Robert Clark/National Geographic; Source: Lee Berger, Wits, photographed at Evolutionary Studies Institute PERMITTED USE: These images may be downloaded or are otherwise provided at no charge for one-time use for media/news coverage or promotion of the National Geographic Society’s H. naledi announcement and exclusively in conjunction thereof. Copying, distribution, archiving, sublicensing sale, or resale of the images are prohibited. DEFAULT: Failure to comply with the prohibitions and requirements set forth above will obligate the individual or entity receiving these images to pay a fee determined by the National Geographic Society. Mandatory usage requirements for National Geographic magazine photos 1-10: Please note: A maximum of 5 images total may be used online A maximum of 5 images total may be used on air A maximum of 3 images total may be used in print
 ONLINE:  1. Include mandatory photo credit with each image
 2. Must show the October cover of National Geographic magazine somewhere in the piece if using two (2) or more images 3. Provide a prominent link to http://natgeo.org/naledi 4. Mention that the images are from "the October issue of National Geographic magazine” BROADCAST: 1. Include mandatory photo credit with each image
 2. Show the October cover of National Geographic magazine at some point during the segment
 3. Provide a verbal mention of "the October issue of National Geographic magazine”
 PRINT:1. Include mandatory photo credi

२५ भदौ, काठमाडौं । बैज्ञानिकहरुले मानव प्रजातिको नयाँ सदस्य पत्ता लगाएका छन् । दक्षिण अफ्रिकाको एउटा अन्धकारमय गुफामा भेटिएको हड्डीको थुप्रोबाट उनीहरुले यो रहस्योद्घाटन गरेका हुन् ।

उक्त हड्डी मानिसको जस्तै तर अझ पुरानो भएको पाइएपछि बैज्ञानिकहरुबीच आश्चर्यको तरंग फैलिएका थियो । यसबाट केहि प्रश्नहरु पनि खडा भएको छ । ती हड्डीहरु कति पुराना हुन् ? साँढेँ सात इन्चको मात्रै दुलो भएको त्यति अनकन्टार र साघुरो ओडारमा ती हड्डी कसरी थुपि्रए ?

जोहनसवर्गबाट ३० माइल उत्तरपुर्वमा रहेको सो स्थानमा पत्ता लागेको जीवलाई अन्वेषकहरुले होमो नेलेदी (ने-ले-दी) नाम दिएका छन् । ठाडो उभिएर हिँड्ने ठानिएको उक्त जीवमा मिश्रित विशेषताहरु पाइएको छ । उदाहरणका लागि हात र खुट्टा मानिसहरुको जस्तै देखिन्छ तर काँध र मस्तिस्कको भागले भने मानिसका पुर्खाहरुको याद दिलाउँछ ।

The braincase of a composite male skull of H. naledi measures just 560 cubic centimeters in volume — less than half that of the modern human skull pictured behind it. The fossils were recovered from the Rising Star cave in South Africa by a team led by National Geographic Explorer-in-Residence Lee Berger of the University of the Witwatersrand. The find was announced by the University of the Witwatersrand, the National Geographic Society and the South African National Research Foundation and published in the journal eLife. Art: Stefan Fichtel. Sources: Lee Berger and Peter Schmid, Wits; John Hawks, University of Wisconsin-Madison/National Geographic PERMITTED USE: These images may be downloaded or are otherwise provided at no charge for one-time use for media/news coverage or promotion of the National Geographic Society’s H. naledi announcement and exclusively in conjunction thereof. Copying, distribution, archiving, sublicensing sale, or resale of the images are prohibited. DEFAULT: Failure to comply with the prohibitions and requirements set forth above will obligate the individual or entity receiving these images to pay a fee determined by the National Geographic Society. Mandatory usage requirements for National Geographic magazine photos 1-10: Please note: A maximum of 5 images total may be used online A maximum of 5 images total may be used on air A maximum of 3 images total may be used in print
 ONLINE:  1. Include mandatory photo credit with each image
 2. Must show the October cover of National Geographic magazine somewhere in the piece if using two (2) or more images 3. Provide a prominent link to http://natgeo.org/naledi 4. Mention that the images are from "the October issue of National Geographic magazine” BROADCAST: 1. Include mandatory photo credit with each image
 2. Show the October cover of National Geographic magazine at some point during the segment
 3. Provide a verbal mention of "the October issue of National G
अनुसन्धानमा संलग्न विनिभर्सिटी अफ विटवाटरस्ट्यान्डका प्रोफेसर ली बर्गरले यो अस्थिपञ्जर २४ लाख देखि २८ लाख वर्ष पुरानो हुन सक्ने आकलन गरे । अस्थिपञ्जर कति उमेरको थियो भन्ने चाहिँ वैज्ञानिकहरुले अनुमान लगाउन सकेका छैनन् ।

नेलेदी अहिलेको मानिसै प्रत्यक्ष पुर्खा भएको दावी आफूहरुले नगरेको बर्गर बताउछन् । अनुसन्धानमा संलग्न नभएका वैज्ञानिकहरुको भनाई पनि यही नै छ । उक्त जीवन यो साँघुरो सुरुङभित्र कसरी रह्यो भन्नेबारेमा वैज्ञानिकहरुले विभिन्न अनुमान छन् ।

 

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