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

Techno-optimist narrative

This breakthrough represents a monumental leap toward solving the organ shortage crisis that kills thousands annually. Growing human hearts in pig embryos for three weeks proves the concept works and brings hope to desperate patients on transplant lists. The technology could revolutionize medicine by providing unlimited organ supplies.

Techno-skeptic narrative

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


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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