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Denisovans UPSC NOTE

 Why in news

  • Bone remains found in Baishiya Karst Cave, a Tibetan cave 3,280 meters above sea level.

  • The discovery suggests a group of Denisovans, an extinct human species, lived there for millennia.

Significance:

  • This is one of only two known locations where Denisovans lived (first discovered in 2008 by Russian scientists in Denisova Cave in Siberia)

  • It provides new information about their ability to survive in harsh conditions (high altitude, ice age).

  • A Denisovan rib bone was identified and dated to 48,000-32,000 years ago.

  • This suggests Denisovans lived on the Tibetan Plateau for at least 160,000 years (200,000 to 40,000 years ago).

  • They lived through cold periods and a warmer interglacial period.

Animal Remains:

  • Most bones belonged to blue sheep (bharal), wild yaks, equids (horses etc.), woolly rhinos, and spotted hyenas.

  • Small mammals and birds were also present.

Denisovan Activities:
  • The analysis suggests Denisovans hunted and consumed a variety of animals.

  • They butchered and extracted meat and bone marrow from the bones.

  • Evidence indicates they even used bones as raw material for tools.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Denisovans UPSC NOTE
Denisovans UPSC NOTE
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