Monday, October 7, 2024

Live Science Newsletter

 "Did we kill the Neanderthals?  New research may finally answer an age-old question."

Views expressed in this science and technology update are those of the reporters and correspondents.  Accessed on 07 October 2024, 1412 UTC.

Content and Source:  https://www.livescience.com

Please check link or scroll down to read your selections.  Thanks for joining us today.

Russ Roberts (https://hawaiisciencejournal.blogspot.com).

October 7, 2024
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Top Science News
Did we kill the Neanderthals? New research may finally answer an age-old question.
(Fabio Fogliazza)
About 37,000 years ago, Neanderthals clustered in small groups in what is now southern Spain. They may have gone about their daily life: Crafting stone tools, eating birds and mushrooms, engraving symbols on rocks, and creating jewelry out of feathers and shells. They likely never realized they were among the last of their kind.

But the story of their extinction actually begins tens of thousands of years earlier, when the Neanderthals became isolated and dispersed, eventually ending nearly half a million years of successful existence in some of the most forbidding regions of Eurasia.

By 34,000 years ago, our closest relatives had effectively gone extinct. But because modern humans and Neanderthals overlapped in time and space for thousands of years, archaeologists have long wondered whether our species wiped out our closest relatives. This may have occurred directly, such as through violence and warfare, or indirectly, through disease or competition for resources.

Now, researchers are solving the mystery of how the Neanderthals died out — and what role our species played in their demise.
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Planet Earth
'Many more ancient structures waiting to be discovered': Lost chunk of seafloor hidden in Earth's mantle found off Easter Island
(Posnov via Getty Images)
Researchers created a seismic map of Earth's interior beneath the southeastern Pacific Ocean and discovered an ancient slab of oceanic crust that appears to be stuck midway through the mantle.
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Space
Draconid meteor shower 2024: How to see dozens of 'shooting stars' fall from the dragon's tail this week
(Getty Images)
How to watch the Draconid meteor shower peak on Oct. 8 and 9 in the tail of a cosmic dragon.
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Your Body
Why does drinking water feel so good when you're thirsty?
(wundervisuals via Getty Images)
Drinking water triggers a variety of complex biochemical reactions that reward rehydration and help satiate our thirst.
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Animals
Alligator gar: The 'living fossil' that has barely evolved for 100 million years
(Danny Ye / Alamy Stock Photo)
This living fossil can grow as large as an alligator, has two rows of needle-sharp teeth, and such strong armor that it survived predatory dinosaurs.
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Poll Question
At its closest point to Earth, how far away is the moon?
(Learn the answer here.)
Vote198,300 miles
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Vote304,400 miles
 
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