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Snapshot 9:Fri, Jun 13, 2025 6:39:28 PM GMT last edited by SofiaLanfri

Scientists Grow Human Hearts in Pig Embryos for 21 Days

Scientists Grow Human Hearts in Pig Embryos for 21 Days

Above: Oocytes prepared for genetic modification injection at Revivicor Labs in Virginia on Nov. 22, 2024. Image copyright: ANDREW CABALLERO-REYNOLDS/AFP/Getty Images

The Spin

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Metaculus Prediction

There's a 5% chance that the US will be the first country to embryo select over 10% of its newborns for intelligence, according to the Metaculus prediction community.


Editor's Note

This story currently has limited coverage. We will continue to monitor all major outlets and update our reporting as additional information becomes available.

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