Scientists thought ravens followed wolves for food. A 2.5-year GPS study told a different story.

Scientists Thought Ravens Followed Wolves for Food. They Were Wrong. Ravens Predict Them For decades, biologists believed ravens found their next meal by shadowing wolves across the landscape until the predators made a kill. A new study in and around Yellowstone National Park suggests the birds are using a far more sophisticated strategy.Instead of constantly…

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A 5,000-year-old ritual circle was hidden under a Scottish island; archaeologists found it without digging

Archaeologists have been excavating the area for ancient secrets since the 1980s Archaeologists have uncovered what could be a 5,000-year-old ritual circle hidden beneath peat on a Scottish island, all without digging into the ground.Using advanced geophysical scanning equipment, researchers from Historic Environment Scotland (HES) detected a ring of buried pits beneath Machrie Moor on…

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Scientists found tropical butterflies that can live nearly a year and show little sign of ageing; here’s why they may matter for longevity research

Some tropical Heliconius butterflies have evolved a remarkable way to stay young, allowing them to live far longer than most butterflies. Most butterflies survive for only a few weeks after reaching adulthood. But scientists have now identified a group of tropical butterflies that can live for almost a year while showing little sign of physical…

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Quote of the day by Sigmund Freud: “The only person with whom you have to compare yourself is…” |

Quote of the day by Sigmund Freud (AI-generated image) There is a particular kind of tiredness that comes from constantly checking how you measure up against everyone else. A colleague’s promotion, a friend’s holiday, a stranger’s fitness progress online, each one quietly resets the bar you are judging yourself against. Sigmund Freud, the founder of…

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The world is losing oxygen in its rivers, but China’s freshwater recovery offers new hope |

Freshwater ecosystems have spent years under growing pressure from pollution, changing weather patterns and rising temperatures. Rivers and lakes in many parts of the world have been losing dissolved oxygen, placing fish, aquatic plants and countless smaller organisms under increasing strain. That broader pattern has often been presented as one of the more difficult environmental…

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Scientists created remote-controlled cockroaches, then fitted them with tiny suits that kept them walking underwater for up to 3 hours |

Cockroaches are already famous for surviving some of Earth’s harshest conditions, but scientists have now pushed their abilities even further. Researchers have developed remote-controlled cockroaches capable of walking underwater for up to three hours by fitting them with miniature oxygen-supplying suits. The unusual technology could one day help emergency teams search flooded buildings, inspect dangerous…

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Israel planted millions of pine trees but what happened next surprised scientists |

During the mid-20th century, large areas of Israel were transformed by one of the country’s most ambitious reforestation programmes. Millions of pine trees were planted to stabilise soils, combat erosion and create forests on previously open landscapes. At first, the initiative appeared to be an environmental success, with barren hillsides becoming green woodlands. However, decades…

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