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Menschen, Keime, Mutationen: Krankheitserreger, die unsichtbaren Geschichtsschreiber - Wissen
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Credit: Oxford Brookes University
How primates get from A to B gives vital information about their cognitive evolution, say researchers in a new study looking at the travel paths of animals in the wild. Using data from 164 wild primate populations, the global survey examines the mental abilities that primates, including ourselves, use to know where and when to travel in the most efficient way.
A birds eye view
Co-author Miguel de Guinea, expert in Evolutionary Anthropology at Oxford Brookes University commented: Imagine looking down on a huge outdoor market from high in the sky, perhaps from a drone hovering quietly above. The people below move in different ways. Some wander haphazardly among the stalls: they are learning what s available but are clearly not busy. Others take bee-line routes across the market to a destination they obviously wanted to reach, then, after buying what they need, head back in much the same way.
Scientists Extract Nuclear DNA from Cave Sediments
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The scientists also recovered nuclear DNA from the two Siberian caves , the Denisova and Chagyrskaya, which also housed Neanderthal populations in the distant past. The Neanderthal residents of Denisova lived there approximately 120,000 years ago, while the occupants of Chagyrskaya were alive much more recently, approximately 62,000 to 72,000 years ago.
Interestingly, a closer analysis of the genetic material taken from two levels at Galería de las Estatuas revealed that it belonged to two separate Neanderthal subspecies . These nuclear DNA samples were intermixed with an abundance of preserved Neanderthal tools, fossilized food scraps, and mitochondrial DNA, making it clear there were large groups of people living inside these caves during the two time periods in question.
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