A Billionaire-Backed Startup Wants to Grow 'Organ Sacks' to Replace Animal Testing 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.

A Billionaire-Backed Startup Wants to Grow 'Organ Sacks' to Replace Animal Testing #Science #Biology #MolecularBiology #OrganSacks #AnimalTesting #BiotechInnovation

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