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Scientists Grow Human Hearts in Pig Embryos for 21 Days

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 credit: ANDREW CABALLERO-REYNOLDS/AFP/Getty Images

The Spin

TheseThis experimentsbreakthrough raiserepresents seriousa ethicalmonumental concernsleap abouttoward creatingsolving human-animalthe hybridsorgan andshortage exploitingcrisis animalsthat forkills humanthousands benefitannually. TheGrowing researchhuman involveshearts geneticin manipulationpig ofembryos sentientfor beingsthree weeks proves the concept works and couldbrings leadhope to unforeseendesperate consequences,patients includingon potentialtransplant virallists. transmissionThe betweentechnology species.could Playingrevolutionize Godmedicine withby nature'sproviding boundariesunlimited demandsorgan extreme cautionsupplies.

These experiments raise serious ethical concerns about creating human-animal hybrids and exploiting animals for human benefit. The research involves genetic manipulation of sentient beings and could lead to unforeseen consequences, including potential viral transmission between species. Playing God with nature's boundaries demands extreme caution.

Metaculus Prediction

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


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© 2026 Improve the News Foundation.

All rights reserved.

Version 6.18.0