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Horseback riding may have begun 5,000 years ago in Europe: study

Who were the first people to ride horses?

Researchers believe they have found the earliest evidence of horseback riding, by the ancient Yamnaya people in Europe some 5,000 years ago.

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How fish evolved to walk – and in one case, turned into humans

When you think about human evolution, there’s a good chance you’re imagining chimpanzees exploring ancient forests or early humans daubing woolly mammoths on to cave walls. But we humans, along with bears, lizards, hummingbirds and Tyrannosaurus rex, are actually lobe-finned fish.

It might sound bizarre but the evidence is in our genes, anatomy and in fossils. We belong to a group of animals called land-dwelling sarcopterygians, but vast amounts of evolutionary change have obscured our appearance.

We think of fish as expert swimmers, but in fact they have evolved the ability to “walk” at least five times. Some species pull themselves forward using well developed fore-fins, while others “walk” along the ocean floor.

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Half of world will be obese by 2035, health organization predicts

Half the world will be overweight by 2035, a health group warns. The World Obesity Federation predicts over 4 billion people will be obese if preventive measures are not implemented, BBC News reported Thursday. The findings show that overweight rates are rising fastest among kids, and that low to middle-income countries in Africa and Asia will undergo the starkest changes. Those countries, the report explains, have dietary preferences which trend towards more highly-processed foods, in addition to increased levels of sedentary behavior, weaker policies on food supply and marketing. Healthcare ...

Male brains don’t respond to images of infant faces like female brains do, study finds

A new study recently published in BMC Neuroscience indicates that female brains respond differently to pictures of newborn infants as compared to male brains on average. Women’s brains tend to show more activity in areas related to facial recognition, attention, and empathy. This research may contribute to an understanding of male and female parenting differences and how to help men be more responsive to their infants. For infants to get their needs met, the caregivers around them must be able to understand their nonverbal signals. These emotional signals consist of facial expressions and nois...

'Cocaine hippos' near former drug lord's estate causing havoc in Colombia

A group of hippopotami known as the "cocaine hippos" is causing problems in Colombia, where CBS News reports they have been breeding out of control.

The hippos in question earned their nickname due to their location near the estate of late drug lord Pablo Escobar, who was fatally shot by police three decades ago.

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Scientists discover hidden corridor inside Egypt's Great Pyramid

Scientists have discovered a hidden passage inside Egypt's Great Pyramid, the authorities announced on Thursday, part of a seven-year international research project.

The passage is nine metres (30 feet) in length and more than two metres in width, the antiquities ministry said in a statement.

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Artificial intelligence could create a ‘modern-day Reichstag fire': leading expert

Although there have been past panics about the dangers that come with the advance of new technology, artificial intelligence is an entirely different animal that has the ability to distort humans' basic sense of reality.

That’s according to a leading AI researcher, who told The Atlantic’s Matteo Wong “that the apparent AI revolution could not only provide a new weapon to propagandists, as social media did earlier this century, but entirely reshape the historiographic terrain, perhaps laying the groundwork for a modern-day Reichstag fire.”

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E-bikes are an environmental dream — except out in nature

SAN JOSE, Calif. -- The boom in electric-powered bicycling is reducing car travel, lowering carbon emissions and introducing homebodies to exercise and the great outdoors. But the activity is on a collision course with an equally cherished environmental ideal: peace and quiet. In response to a new state policy that allows e-bikes anywhere that standard bikes are permitted, local officials are racing to ban their use on unpaved routes in open space preserves. On Monday, the city of Palo Alto voted 5-2 to prohibit them from the popular Baylands Trail, beloved for its sweeping views of the South ...

SpaceX Dragon crew enter International Space Station

Four astronauts entered the International Space Station after their SpaceX Dragon Crew-6 mission successfully docked

Washington (AFP) - Four astronauts entered the International Space Station on Friday after their SpaceX Dragon Crew-6 mission successfully docked, a NASA livestream showed.

The SpaceX Dragon Endeavour spacecraft arrived at the orbiting station at 0640 GMT on Friday, the US space agency said in a statement.

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Pioneering flight uses hydrogen to power regional airplane

MOSES LAKE, Washington — A small crowd of investors, airline representatives and journalists at Moses Lake in Central Washington got a first look Thursday morning at whether hydrogen power might be the future of sustainable, zero-emissions aviation.

A turboprop De Havilland Canada Dash 8-300 retrofitted by Los Angeles-based startup Universal Hydrogen took off from Moses Lake in a brief pioneering flight aimed at proving the technology viable.

Belief in inherent hierarchy differentiates liberals and conservatives, study finds

A new study on what makes conservative brains tick suggests it may come down to a proclivity to view reality as "inherently hierarchical," according to researchers.

Initial research indicated that conservatives tend to view the world as more dangerous, but subsequent studies have failed to replicate that finding.

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New results from NASA’s DART planetary defense mission confirm we could deflect deadly asteroids

What would we do if we spotted a hazardous asteroid on a collision course with Earth? Could we deflect it safely to prevent the impact?

Last year, NASA’s Double Asteroid Redirection Test (DART) mission tried to find out whether a “kinetic impactor” could do the job: smashing a 600kg spacecraft the size of a fridge into an asteroid the size of an Aussie Rules football field.

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Tropical deforestation significantly reduces rainfall: study

From the Amazon to the evergreen forests of Africa and Southeast Asia, large-scale deforestation threatens reductions in rainfall across the tropics, according to new research.

The threat is most acute in the Congo Basin -- forecast to endure rapid deforestation in the coming years -- which could see rainfall reduced by up to ten percent by the end of the century, researchers found.

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