ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
How Earth's First, Unkillable Animals Saved the World
Sponges have survived every catastrophe and every mass extinction event that nature has thrown at them. And by being the little, filter-feeding, water-cleaning creatures that they are, sponges may have saved the world.

How Volcanoes Froze the Earth (Twice)
Over 600 million years ago, sheets of ice coated our planet on both land and sea. How did this happen? And most importantly for us, why did the planet eventually thaw again? The evidence for Snowball Earth is written on every continent today.





That's reassuring given the poor life choices of Homo sapiens today.

Ceramics

Jun. 25th, 2025 06:12 pm
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
I spotted this video about harvesting, shaping, and firing wild clay. I did that back in high school at Ancient Lifeways Camp. It was a lot of fun to dig and clean the clay, then make things. Our theme was Sumeria, so we made oil lamps (harder than you'd think) and cuneiform quotes. I also made a ceramic goddess figurine. We used a pit fire, which helps keep the temperature more stable. If you have a source of natural clay, this kind of project is well worth trying.
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
This is the earliest mass extinction we know of on Earth, and it may well have been the worst.  However, it usually doesn't appear on the standard lists of major mass extinctions.

Currently we are in the Anthropocene, whether people want to admit it or not.  We are also in the midst of the Anthropocene Extinction, whether people want to admit it or not.  See the insect apocalypse, amphibian apocalypse, and bird apocalypse

Despite these grim statistics, humanity is not the most destructive species the Earth has ever known.  That honor goes to whatever organism first discovered fire, harnessed the power of the Sun, and farted so much oxygen that almost everything else died.  
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
This cartoon is true, as far as it goes.

But if you think Russia is likely to blink at those losses, think again.
ysabetwordsmith: A blue sheep holding a quill dreams of Dreamwidth (Dreamsheep)
Today's theme is Hetalia. Initially a webcomic, Hetalia was later adapted as a serialized manga and an anime series. The series personifies the nations of the world into immortal anthropomorphic characters and presents an allegorical (and often satirical) interpretation of political, historical, and cultural events throughout history and the present day. This riff is a personal favorite.

Read more... )

History

Jun. 9th, 2025 04:27 pm
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New evidence reveals advanced maritime technology in the philippines 35,000 years ago

In a bold reimagining of Southeast Asia s prehistory, scientists reveal that the Philippine island of Mindoro was a hub of human innovation and migration as far back as 35,000 years ago. Advanced tools, deep-sea fishing capabilities, and early burial customs show that early humans here weren t isolated they were maritime pioneers shaping a wide-reaching network across the region.
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
3,500-year-old graves reveal secrets that rewrite bronze age history

Around 1500 BC, radical changes occurred in people's lives: they ate and lived differently, and the social system was also reorganized.
Bronze Age life changed radically around 1500 BC in Central Europe. New research reveals diets narrowed, millet was introduced, migration slowed, and social systems became looser challenging old ideas about nomadic Tumulus culture herders
.
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
Hippie Chicks: A Different Feminism

Gretchen Lemke-Santangelo’s Daughters of Aquarius: Women of the Sixties Counterculture (2009) is the only monograph to date that has given these women a place in the history of feminism. Instead of portraying them as stereotypical earth mothers, nymphs in peasant dresses, or strung-out domestic drudges—the antithesis of feminism—the author demonstrates how these women broke with both the middle-class housewife and the rising career woman to recover the value of women’s productive labor in rural America. They rejected both liberal feminism’s insistence on state-guaranteed rights and radical feminism’s rejection of gender binaries to forge their own version of female empowerment.


This is the feminism that I grew up with. I found it more impressive than the feminism I studied in college.  it was a lot more diverse, too.  There were the earth mothers, the free lovers, the farmers, the crafters, the musicians, the ball-busting bitches, the blythe spirits, the radical activists, the wanderers -- so many girls and women who didn't fit the mainstream mold and weren't interested in academic feminism.

History

May. 31st, 2025 09:57 pm
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The Best Part of Researching Trans History Is When I’m Wrong

Lost pieces are being found, and pictures are coming together after generations of obscurity.


If you or your people are being hunted, write down your history and culture. Copy it. And then scatter it as widely as you possibly can. Hide it in walls, under floorboards, tuck it into other books. Stamp it on clay, fire it, and drop the tablets into a landfill because archaeologists always know to look for middens. Fling the copies so far that your enemies will never find them all. And then you can speak your truth to the future and the listening ears who come after.

Now is the perfect time for this kind of activism.  It's something anyone can do.  It's cheap and easy.  Just pick any thing the fuckwits in charge want to suppress, and work against that to preserve it.  You can do this every time they piss you off.

Fossils

May. 21st, 2025 08:33 pm
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Dexterity and climbing ability: how ancient human relatives used their hands

Scientists have found new evidence for how our fossil human relatives in South Africa may have used their hands. Researchers investigated variation in finger bone morphology to determine that South African hominins not only may have had different levels of dexterity, but also different climbing abilities.

Diversity is strength.

Fossils

May. 15th, 2025 11:14 am
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
Fossil tracks show reptiles appeared on Earth up to 40 million years earlier

The origin of reptiles on Earth has been shown to be up to 40 million years earlier than previously thought -- thanks to evidence discovered at an Australian fossil site that represents a critical time period. Scientists have identified fossilized tracks of an amniote with clawed feet -- most probably a reptile -- from the Carboniferous period, about 350 million years ago.


So exciting!  :D
ysabetwordsmith: (Fly Free)
Based on an audience poll, this is the free epic for the May 6, 2025 Poetry Fishbowl making its $200 goal. It is spillover from the April 1, 2025 Poetry Fishbowl. It was inspired by a prompt from [personal profile] see_also_friend. It also fills the "Coastal Style" square in my 4-1-25 card for the Aesthetics Bingo fest. This poem belongs to the series Peculiar Obligations.

Read more... )
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
Waxing and waning prairie: New study unravels causes of ancient climate changes

A long period of drought in North America has been recognized by scientists for decades. A new study links the severe climate to a change in Earth's orbit.

A new study from the University of Helsinki has provided a compelling new explanation for the devastating droughts which have taken place in North America thousands of years ago.This period, known as the Holocene, covers the time of generally warm climate following the last ice age. These exceptionally long-lasting droughts had drastic impacts on forest dieback and ecosystem transformations; understanding their causes is essential to improving societal resilience to future climate variations.



Fossils

May. 2nd, 2025 11:01 pm
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
Ptero firma: Footprints pinpoint when ancient flying reptiles conquered the ground

Study links fossilized flying reptile tracks to animals that made them.
A new study links fossilized flying reptile tracks to animals that made them. Fossilized footprints reveal a 160-million-year-old invasion as pterosaurs came down from the trees and onto the ground. Tracks of giant ground-stalkers, comb-jawed coastal waders, and specialized shell crushers, shed light on how pterosaurs lived, moved, and evolved.

ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
Giant croclike carnivore fossils found in the Caribbean

Imagine a crocodile built like a greyhound -- that's a sebecid. Standing tall, with some species reaching 20 feet in length, they dominated South American landscapes after the extinction of dinosaurs until about 11 million years ago. Or at least, that's what paleontologists thought. A new study shows the Caribbean Islands were a refuge for the last sebecid populations at least 5 million years after they went extinct everywhere else.

LOL yes, I spotted those in Peculiar Obligations. Nice to know people have found them in the Caribbean here too, and later than expected.  They're often called galloping crocodiles or hooved crocodiles.  Here are some different examples.
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
Sea sponges often thrive during and after a mass extinction, as they are more resilient to some stressors and they are filter feeders that subsist on organic particles. 

Aaaaand here we go again.

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