TECHNOLOGYglobal
A Billionaire-Backed Startup Wants to Grow 'Organ Sacks' to Replace Animal Testing
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Updated 2 hours ago
First seen March 23, 2026 20:30:17Stay on top of this story
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Quick Summary
R3 Bio has a bold idea for replacing lab animals: genetically-engineered whole organ systems that lack a brain. The long-term goal, says a cofounder, is to make human versions.