Scientists removed trout from a California mountain lake; the recovery was visible not just in frogs, but in insects and birds |

Scientists removed trout from a California mountain lake; the recovery was visible not just in frogs, but in insects and birds |

In the high-elevation lakes of California’s Sierra Nevada, trout introduced into mountain lakes are affecting more than the water itself. Researchers studied 39 lakes in Sequoia and Kings Canyon National Parks, comparing bird abundance with aquatic insects emerging from the water. A study published in Ecosphere titled ‘Crossing boundaries: Introduced trout alter the bird community…

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A 66-million-year-old feather was found inside dinosaur poop; it may explain how birds survived the asteroid that killed the dinosaurs

A 66-million-year-old feather was found inside dinosaur poop; it may explain how birds survived the asteroid that killed the dinosaurs

Tyrannosaur preying on an ancient diving bird (Representational AI photo) A 66-million-year-old feather found inside fossilised dinosaur poop may offer a clue to why some birds survived the asteroid impact that wiped out most dinosaurs. Scientists say the feather belonged to a hesperornithiform, an extinct group of aquatic birds that lived alongside dinosaurs.The feather was…

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Scientists collected 49 spider webs in Australia; their DNA revealed 85 vertebrate species hiding nearby |

Scientists collected 49 spider webs in Australia; their DNA revealed 85 vertebrate species hiding nearby |

Spider webs may hold a surprising record of the animals living nearby. A study found that genetic traces from terrestrial vertebrates can be collected directly from spider webs, turning the structures into passive filters for environmental DNA. Researchers tested 49 webs from an Australian wildlife sanctuary and Perth Zoo and detected vertebrate DNA in every…

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Scientists used centuries-old aurora sightings to reconstruct 8 solar cycles from 1560 to 1640; their method placed solar minima within 2 years with more than 90% reliability

Scientists used centuries-old aurora sightings to reconstruct 8 solar cycles from 1560 to 1640; their method placed solar minima within 2 years with more than 90% reliability

Centuries-old reports of strange lights in the night sky have helped scientists reconstruct a missing chapter in the Sun’s history. A study published in Scientific Reports by Kristof Petrovay, Laura G. Magyar and Hisashi Hayakawa has reconstructed eight solar activity cycles between 1560 and 1640 using historical records of aurorae, offering a way to trace…

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MIT scientists turned tree branches into water filters that remove more than 99% of bacteria and viruses |

MIT scientists turned tree branches into water filters that remove more than 99% of bacteria and viruses |

Tree branches could provide a simple way to filter drinking water. MIT engineers have developed water filters made from sapwood, the living wood found beneath the bark of trees such as pine and ginkgo. The material contains tiny channels called xylem that normally carry water through a tree. Thin membranes between these channels act like…

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A man climbed inside a giant Roman storage jar around 1,600 years ago and never came out; archaeologists think they know what he was hiding from

A man climbed inside a giant Roman storage jar around 1,600 years ago and never came out; archaeologists think they know what he was hiding from

More than 1,600 years ago, as fire engulfed a Roman settlement in what is now Bulgaria, a young man appears to have made a desperate decision: he climbed inside a huge storage jar and hid. He never came out. Archaeologists uncovered his remains inside the vessel during excavations at the ancient Roman colony of Deultum…

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Scientists played human shouts, wolf and cougar calls near British Columbia crop fields; deer fled 64% of the time from human voices, but quickly learned to ignore the deterrents

Scientists played human shouts, wolf and cougar calls near British Columbia crop fields; deer fled 64% of the time from human voices, but quickly learned to ignore the deterrents

What scares a deer away from a crop field, a wolf howl, a cougar call or the sound of a human shouting? A 2025 study by researchers from the University of Alberta and King’s University found that, among the sounds tested, human shouts produced the strongest flight response in both deer and elk. But the…

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In the 1850s, pigs brought to Santa Cruz Island became feral; golden eagles drawn by piglets helped drive foxes down 95%, then 5,036 pigs were removed as foxes rebounded to 1,300+

In the 1850s, pigs brought to Santa Cruz Island became feral; golden eagles drawn by piglets helped drive foxes down 95%, then 5,036 pigs were removed as foxes rebounded to 1,300+

An ambitious conservation project off the coast of California has helped save the endangered Santa Cruz Island fox from near extinction. The rescue effort involved removing 5,036 feral pigs, allowing the native island fox (Urocyon littoralis santacruzae) population to recover from fewer than 100 animals to more than 1,300 across the 96-square-mile island. According to…

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