How a sperm bank for cheetahs might one day save the fastest land animal
For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, hoping conservationists never have to use them.
For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, hoping conservationists never have to use them.
Ecology
Dec 4, 2025
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14
Jared Isaacman, US President Donald Trump's two-time appointee to lead NASA, said it was his goal that the United States beat rival China in the race to return humans to the moon, during a Senate confirmation hearing Wednesday.
Space Exploration
Dec 4, 2025
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23
Higher plant diversity in agricultural grasslands increases yields with lower inputs of nitrogen fertilizer. That is the headline finding of a landmark, international study led by Trinity College Dublin that paints a promising ...
Ecology
Dec 4, 2025
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31
Inside human cells, biology has pulled off the ultimate packing job, figuring out how to fit six feet of DNA into a nucleus about one-tenth as wide as a human hair while making sure the all-important molecules can still function.
Cell & Microbiology
Dec 4, 2025
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98
A short interaction with a chatbot can meaningfully shift a voter's opinion about a presidential candidate or proposed policy in either direction, new Cornell University research finds.
Political science
Dec 4, 2025
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34
When DNA breaks, cells must repair it accurately to prevent harmful mutations. Researchers have discovered that during a key repair process called homologous recombination, the cell uses loops in its DNA structure to speed ...
Cell & Microbiology
Dec 4, 2025
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15
For decades, paleontologists argued over the lone skull used to establish the distinct species Nanotyrannus. Was it truly a separate species or simply a juvenile Tyrannosaurus rex? A new paper published in Science has definitively ...
Paleontology & Fossils
Dec 4, 2025
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91
Acoustic signals have been important markers during NASA's Mars missions. Measurements of sound can provide information both about Mars itself—such as turbulence in its atmosphere, changes in its temperature, and its surface ...
Planetary Sciences
Dec 4, 2025
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21
Women are largely absent from the questions, sources, and mark schemes that shape how history is taught and assessed in schools in England.
Education
Dec 4, 2025
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10
Clothing is one of the top categories in online sales worldwide, with expected revenues of more than US$920 billion (£702 billion) this year. And for clothing businesses, like many others, online retail opens the door to ...
Economics & Business
Dec 4, 2025
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9