Much like the brain utilizing molecular signals to pass information, the rest of the body similarly requires chemical instruction to differentiate and develop. This article profiles a researcher from Tufts who is studying bioelectric patterns and signals that can induce differentiation and coerce limbs to regrow in frogs and worms. His work also brings in computational methods to model drug affects on the development of the brain, as well as building 3D structures out of stem cells based on a program that designs micro-robots. This understanding of electrical signals and their relationship with development has implications not only for the regrowth of lost limbs but also for neurodevelopmental disorders and cancer.
https://www.newyorker.com/magazine/2021/05/10/persuading-the-body-to-regenerate-its-limbs
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