The ability to regrow body parts is dormant in mammals, not lost

# Summary Researchers at Texas A&M University discovered that mammals possess dormant regenerative abilities that can be activated through a two-step treatment using growth factors FGF2 and BMP2, successfully restoring bone, joints, ligaments, and tendons in animal studies. Rather than lacking regenerative powers entirely, mammalian bodies appear to have a "switch" that normally directs healing toward scar tissue formation, but can be redirected toward tissue regrowth under the right conditions. This breakthrough suggests that humans may eventually be able to regenerate complex body parts rather than relying solely on scar healing.