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  • Making ‘true’ equine IVF a reproducible success

    A new method developed by Katrin Hinrichs and colleagues in the School of Veterinary Medicine resulted in the birth of three healthy foals. The technique opens the door to new insights in the basic biology of horse reproduction.
    Three foals and two mares in a pasture
    After a decades-long quest for an efficient way to perform “true” in vitro fertilization in horses, researchers from Penn Vet have developed a new, successful technique, resulting in the birth of three healthy foals. (Image: Matheus Felix/Penn Vet)

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  • OpenAI, DeepSeek, and Google vary widely in identifying hate speech
    Two people work on coding at computer.

    Image: Kindamorphic via Getty Images

    OpenAI, DeepSeek, and Google vary widely in identifying hate speech

    Neil Fasching and Yphtach Lelkes of the Annenberg School for Communication have found dramatic differences in how large language models classify hate speech, with especially large variations for language about certain demographic groups, raising concerns about bias and disproportionate harm.

    Sep 10, 2025