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Archaeology and genomics together with Indigenous knowledge revise the human-horse story in the American West

Horses first evolved in the Americas around 4 million years ago. Then horses largely disappeared from the fossil record by about 10,000 years ago. However, archaeological finds from the Yukon to the Gulf Coast make it clear that horses were an important part of ancient lifeways for the early peoples of North America.

Millennia later, horses were reintroduced by European colonists, and eventually the Great Plains became home to powerful Indigenous horse cultures, many of which leveraged their expertise on horseback to maintain sovereignty even amid the rising tides of colonial exploitation, genocide and disease.

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Webb telescope discovers oldest galaxies ever observed

Paris (AFP) – The James Webb Space Telescope has discovered the four most distant galaxies ever observed, one of which formed just 320 million years after the Big Bang when the universe was still in its infancy, new research said on Tuesday.

The Webb telescope has unleashed a torrent of scientific discovery since becoming operational last year, peering farther than ever before into the universe's distant reaches -- which also means it is looking back in time.

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Seaweed mass expands, reaches record tonnage in Florida

MIAMI — We already knew South Florida beaches were bracing for a surge of seaweed, but the mass of seaweed looming in the Atlantic Ocean is now officially record-breaking. The Great Atlantic Sargassum Belt — the official name for the collection of floating brown seaweed that sprawls across 5,000 miles from the Gulf of Mexico to the west coast of Africa — contained about 13 million tons of seaweed by the end of March, according to researchers at the University of South Florida’s Optical Oceanography Lab who have been monitoring the sargassum belt via satellite. That’s a new record for this time...

NASA announces 4 astronauts flying to the moon on Artemis II

ORLANDO, Fla. — Humans haven’t traveled beyond low-Earth orbit in more than 50 years, but that’s set to change with the launch of the Artemis II mission to orbit the moon next year with four passengers on board. Just who will be flying was revealed today. NASA and the Canadian Space Agency named the four astronauts that will climb aboard the Orion spacecraft to be launched atop the Space Launch System rocket from Kennedy Space Center as early as November 2024. Commanding the mission will be Reid Wiseman, the former head of NASA’s astronaut office who stepped down to be eligible to fly on missi...

Scientists in Arctic race to preserve 'ice memory'

Scientists camped in the Arctic are set to start drilling to save samples of ancient ice for analysis before the frozen layers melt away due to climate change, mission organizers said on Monday.

Italian, French and Norwegian researchers are in Norway's Svalbard archipelago in what they called a race against time to preserve crucial ice records for analyzing past environmental conditions -- planning to ship them all the way to the Antarctic for storage.

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Has GPT-4 really passed the startling threshold of human-level artificial intelligence? Well, it depends

Recent public interest in tools like ChatGPT has raised an old question in the artificial intelligence community: is artificial general intelligence (in this case, AI that performs at human level) achievable?

An online preprint this week has added to the hype, suggesting the latest advanced large language model, GPT-4, is at the early stages of artificial general intelligence (AGI) as it’s exhibiting “sparks of intelligence”.

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Sabertooth cat skull newly discovered in Iowa reveals details about this Ice Age predator

The sabertooth cat is an Ice Age icon and emblem of strength, tenacity and intelligence. These animals shared the North American landscape with other large carnivores, including short-faced bears, dire wolves and the American lion, as well as megaherbivores including mammoths, mastodons, muskoxen and long-horned bison. Then at the end of the Pleistocene, between 50,000 and 10,000 years ago, they all vanished. The only place to see them now is in the fossil record.

Carnivore fossils are extremely rare, though, in comparison to those of their prey. Prey are always more abundant than predators in a healthy ecosystem. So the probability of burial, storage and discovery of carnivore bones and teeth is therefore slim compared to those belonging to herbivores.

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Humans vs. machines: the fight to copyright AI art

By Tom Hals and Blake Brittain

(Reuters) - Last year, Kris Kashtanova typed instructions for a graphic novel into a new artificial-intelligence program and touched off a high-stakes debate over who created the artwork: a human or an algorithm.

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Austria glaciers retreat 'more than ever': measurement

Austrian glaciers last year retreated "more than ever", the country's Alpine Club said Friday, as climate change threatens glaciers around the globe.

On average, 89 Austrian glaciers observed by the organisation have become 28.7 metres (94.2 feet) shorter, compared to 11 metres in 2021, it said in a statement, sounding a "red alert".

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This Jersey girl is saving the planet, one tube of mascara at a time

If you wrote the story of Paige DeAngelo's life so far, it would be in mascara. Start with dance. Ever since she was a toddler watching her older sisters in dance class in Haddon Township, New Jersey, she loved it. By age 8, she was competing and putting on her own makeup. Lots of mascara there. Then there's the weather. Clouds, the stars, it was all magical. In elementary school, her mother took her to meet her idol, the glamorously camera-ready Fox29 weather anchor Sue Serio. Even more mascara. By the time she entered Drexel University, this Jersey girl knew she wanted to combine her loves —...

Upward comparison on social media harms body image, self-esteem, and psychological well-being

New research examining 15 years’ worth of research indicates that comparing ourselves to people who seem better off than us on social media can result in several negative psychological outcomes. The new findings appear in the journal Media Psychology. “I became interested in researching social media because of its massive presence in the lives of so many people,” said study author Carly McComb, a PhD candidate at The University of Queensland in Brisbane. “Currently, there are over 4.2 billion people worldwide that are active social media users. For something that has become a large part of man...

The AI arms race highlights the urgent need for responsible innovation

The recent frenzy over language processing tools such as ChatGPT has sent organizations scrambling to provide guidelines for responsible usage. The online publishing platform Medium, for example, has released a statement on AI-generated writing that promotes “transparency” and “disclosure.”

My own institution has established an FAQ page about generative AI that calls on educators to make “wise and ethical use” of AI and chatbots.

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Bird-brained? Climate change may affect intelligence in birds

Large brains are a hallmark of human evolution. Brains allow us to make sense of the world and to successfully navigate through our lives.

Bigger brains are valuable because they provide increased flexibility to deal with everyday problems, allowing them to make better decisions, learn difficult skills and innovate solutions to challenging problems.

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