July 11th, 2024

Denisovians Survived on Tibetan Plateau for 160k Years

Researchers found 2,500+ bones in Baishiya Karst Cave, Tibetan Plateau, revealing Denisovans' 160,000-year presence. A rib dating 48,000-32,000 years ago sheds light on their survival strategies, hunting, and tool-making skills. The study underscores Denisovans' adaptation to high altitudes and changing climates, offering insights into their unique evolution.

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Denisovians Survived on Tibetan Plateau for 160k Years

Researchers have discovered over 2,500 bones in the Baishiya Karst Cave on the Tibetan Plateau, indicating that the Denisovans lived there for 160,000 years. The Denisovans, contemporaries of Neanderthals and Homo sapiens, interbred with both groups. The recent finding of a Denisovan rib dating back 48,000 to 32,000 years ago sheds light on their survival during different climatic periods. The cave bones, mostly from animals like blue sheep and wild yaks, show the Denisovans' hunting skills and tool-making abilities. The study highlights the Denisovans' adaptation to high altitudes and changing climates, providing valuable insights into this ancient human species. The stable environment of the Ganjia Basin where the cave is located supported the Denisovans despite the high altitude. The research also emphasizes the importance of understanding the behavior and lifestyle of the Denisovans, as they represent a unique and intriguing part of human evolution.

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A Denisovan fossil found in the Baishiya Karst Cave on the Tibetan Plateau reveals their diverse diet. Researchers used ZooMS to analyze bone samples, shedding light on Denisovan behavior and adaptation.

High-altitude cave used by Tibetan Buddhists yields a Denisovan fossil

High-altitude cave used by Tibetan Buddhists yields a Denisovan fossil

A Denisovan fossil found in the Baishiya Karst Cave on the Tibetan Plateau reveals insights into their diet and lifestyle. Analysis of animal bones suggests a varied diet including sheep, yaks, carnivores, and birds. The Xiahe mandible is a significant find.

Link Icon 3 comments
By @jaredhallen - 4 months
Reading stories about ancient hominins always piques my imagination. The incredible spans of time, the various species and subspecies (of which at least some were apparently interbreeding), and the lack of historical record always leave me wondering what endless stories have been lost to the annals of time.
By @abeppu - 4 months
> The recently discovered bones include one Denisovan rib that dated to between 48,000 and 32,000 years ago. This is the same time that Homo sapiens were spreading across Eurasia. We already have evidence that these ancient humans lived in this area 190,000 years ago. The new fossil suggests they endured two cold periods and a warmer interglacial period between the Middle and Late Pleistocene eras.

So without mentioning what the evidence is about 190K years ago, from two points we infer that they were there the whole intervening time? If conditions were harsh, and if we know they eventually got at least as far as SE Asia, why would we not think that in the huge span between those points, they might have wandered away and later returned? 160k years is a long long time. Apparently humans came across the land bridge into the Americas like 16k years ago.