Zeke Darwin
@Zeke_Darwin
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I’m just a middle school science teacher that shares information about the evolution of life on earth…
Joined August 2013
UPDATE: Mapping Ancient Human Cousins v1.4 A rough look at where the remaining hominins were at over the last 300kya. Hold and click "load in 4k" for full quality. Last update for a while, going to work on a human migrations map. Thank you for sharing! #evolution #science #edu
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What does the study actually say about the headline suggesting sapiens may have interbred with the hobbit species, floresiensis, along the way? That and more in the video:
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A new study relating to one of the more controversial periods of the story of sapiens… DNA suggests the first people to cross into Sahul (and modern day Australia) did so more than 60,000 years ago. It also suggests two distinct waves, a north and south, arrived around the
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AI is terrible when it comes to ancient life. Whether art or information - I’ve found it to be extremely unreliable. This is a great example of that.
Contacts between these species were apparently quite complex
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Also notice the chin. A trait not found in Neanderthals.
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This has been the consensus for a while. Whether you call it ‘extinction’ or not is mostly semantics. Neanderthals were gradually absorbed into our lineage. In that sense, they went extinct through absorption.
🚨New research shows Neanderthals never truly went extinct. A new study proposes Neanderthals were gradually absorbed into the sapiens gene pool through interbreeding. Today, people of non-African ancestry still carry 1-4% Neanderthal DNA
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Too adorable 🥹 This young fan in Phoenix stole the show with the cutest wave on the Jumbotron!
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Random cursed mammoth sighting
Locke, Marx, and 20th century anthropologists imagined mythical "noble savages" singing kumbaya were our forefathers. But the genetic and archaeological record shows, instead, violent population replacements, great treks over land and sea, and even settled communities.
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It really can be explained this simply.
genetic drift + localized population extinctions
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genetic drift + localized population extinctions
This doesn't make sense Indigenous North American DNA contains Haplogroup X, a maternal lineage pratically absent in Asia but faintly present in Europe and the Near East. So how did a genetic branch skip Asia but appear on both sides of the Atlantic?
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A new paper was published relating to some of the animals the first humans inhabiting Australia would have encountered. While not the “high definition” information that DNA provides, this new study was able to use proteins to untangle some of the genetic relationships instead.
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The Return of a Legendary Bird | How the Nez Perce Wildlife Division is working to bring the California Condor Home… and how @colossal is providing assistance.
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MAMMOTH NEWS | For the first time, scientists have unlocked the secrets of ancient mammoth RNA. Textbooks still say this molecule degrades within minutes to hours of death, but the last 5 years have proven it can persist much longer in certain situations. Yuka, the ~40,000 year
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Terrestrial P/Tr vertebrates: my lineage will perish in this great dying Marine P/Tr vertebrates: there was an extinction event?!
An early Triassic bone bed excavated at 78°N changes the story about how marine life recovered after the most cataclysmic extinction in Earth history ~252 million years ago. Learn more in this week's issue of Science: https://t.co/DSjPL2NTzS
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Did you know whales shed their skin? This helps them stay hydrodynamic AND get rid of some parasites and bacteria.
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