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The Latest Breaking News from Live Science

'System in flux': Scientists reveal what happened when wolves and cougars returned to Yellowstone

Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal their prey, cougars' shift from elk- to deer-heavy diets, paired with a rugged landscape for escape, might help cougars avoid violent wolf encounters.

LiveScience

In the search for bees, Mozambique honey hunters and birds share a language with distinct, regional dialects

People searching for honey in Mozambique work with birds via a shared language in a rare case of cooperation between humans and wild animals. This language also comes with regional dialects — that appear to be driven by the birds.

LiveScience

The Colorado River's largest tributary flows 'uphill' for over 100 miles — and geologists may finally have an explanation for it

Millions of years ago, the Green River carved a path through the Uinta Mountains instead of flowing around the formation. Now, researchers have discovered how this could have happened.

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When were boats invented?

The oldest physical boat is a canoe from roughly 10,000 years ago, but evidence suggests humans have been using watercraft for at least 50,000 years.

LiveScience

Astronomers spot 'time-warped' supernovas whose light both has and hasn't reached Earth

Will two rare supernovas finally tell us how fast the universe is expanding? Perhaps, but we'll have to wait for it for them to 'reappear'.

LiveScience

New triple-drug treatment stops pancreatic cancer in its tracks, a mouse study finds

By targeting three key growth pathways at once, researchers eliminated pancreatic tumors in multiple mouse models and prevented the cancer from returning, a promising step toward overcoming treatment resistance.

LiveScience

Thousands of dams in the US are old, damaged and unable to cope with extreme weather. How bad is it?

Dams in the U.S. are showing signs of damage that are worsening with age and climate change. Could satellites help prioritize repairs amid budget and inspection constraints?

LiveScience

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More than 43,000 years ago, Neanderthals spent centuries collecting animal skulls in a cave; but archaeologists aren't sure why

Neanderthals repeatedly returned to the cave to store horned animal skulls, revealing this cultural tradition was transmitted over time.

LiveScience

Critical moment when El Niño started to erode Russia's Arctic sea ice discovered

Scientists discover a tipping point that took place in 2000, where El Niño’s effect on sea ice loss in Siberia was amplified.

LiveScience

Can AI detect cognitive decline better than a doctor? New study reveals surprising accuracy

Designed to assist rather than replace doctors, a new autonomous tool scans clinical notes to highlight patients who may need urgent follow-up for cognitive decline and potential dementia.

LiveScience

430,000-year-old wooden handheld tools from Greece are the oldest on record — and they predate modern humans

Archaeologists have found the oldest-known surviving examples of handheld wooden tools.

LiveScience

Next-generation AI 'swarms' will invade social media by mimicking human behavior and harassing real users, researchers warn

Artificial intelligence experts have warned that AI "swarms" are poised to infiltrate social media by deploying agents that mimic human behavior and exploit our tendency to follow the herd.

LiveScience

160,000-year-old sophisticated stone tools discovered in China may not have been made by Homo sapiens

Archaeologists have found the oldest known evidence of hafted tools in East Asia, and they challenge a previously held assumption about stone tool use.

LiveScience

Rock climbers in Italy accidentally discovered evidence of an 80 million-year-old sea turtle stampede

Scientists say grooves on a rock face overlooking the Adriatic Sea may have been made by sea turtles fleeing an earthquake.

LiveScience

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Shark attacks in Hawaii spike in October, and scientists think they know why

Sharktober is real in Hawaii — and it's down to the reproductive pattern of predatory tiger sharks, an analysis of 30 years of data reveals.

LiveScience

IVF hormones could be delivered with painless 'microneedle' patch someday, early study hints

Scientists are developing a microneedle patch that they hope could someday simplify IVF hormone delivery. They've tested it in animals.

LiveScience

People with more 'brown fat' have healthier cardiovascular systems. A new study in mice may explain why.

A mouse study shows that beige fat, previously known for its heating function, may also lower blood pressure by keeping blood vessels relaxed. The same may go for brown fat in humans.

LiveScience

Why does the moon look larger when it's on the horizon?

The moon looks enormous when it's near the horizon — why is that?

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LiveScience

480,000-year-old ax sharpener is the oldest known elephant bone tool ever discovered in Europe

The "very rare" find provides an extraordinary glimpse into the ingenuity of early human relatives who lived around half a million years ago.

LiveScience

Some of the oldest harpoons ever found reveal Indigenous people in Brazil were hunting whales 5,000 years ago

The origins of whaling are highly debated. Now, some of the earliest signs of active whale hunting have appeared somewhere unexpected: southern Brazil.

LiveScience

Californians have been using far less water than suppliers estimated — what does this mean for the state?

Flawed assumptions about water demand mean suppliers in California overestimated future demand by an average of 74% over 20 years — positive news for the drought-embattled state.

LiveScience

Scientists may be approaching a 'fundamental breakthrough in cosmology and particle physics' — if dark matter and 'ghost particles' can interact

Astronomers found evidence that dark matter and neutrinos may interact, hinting at a "fundamental breakthrough" that challenges our understanding of how the universe evolved.

LiveScience

Lab mice that 'touch grass' are less anxious — and that highlights a big problem in rodent research

Mice that experience the real world may be better models for human mental health conditions, compared with lab mice that never leave their cages, a study hints.

LiveScience

World's oldest known rock art predates modern humans' entrance into Europe — and it was found in an Indonesian cave

The hand stencil is more than 1,000 years older than the previous earliest evidence of rock art.

LiveScience

Diagnostic dilemma: A woman experienced delusions of communicating with her dead brother after late-night chatbot sessions

A woman developed psychosis, and her symptoms escalated rapidly, prompting clinicians to retrace the events leading up to her hospitalization.

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