Scratching an embryonic blastoderm can produce multiple independent, viable embryos (conjoined twins, triplets, etc.) (McMillen & Levin).

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.

• Temporary introduction of breaks in the embryonic blastoderm results in twins, triplets, etc. (Lutz 1949)finding0.810
  Demonstrates that the blastoderm is a dynamical excitable medium where multiple coherent embryos can self-organize, not fixed by genetics.
• The number of embryos emerging from an embryonic blastoderm is not genetically fixed but determined in real-time by physiological processes.claim0.796
  Highlights dynamical determination of individuality through collective autopoiesis.
• Mammalian embryos overcome drastic perturbations such as amputation, and early embryo splitting results in normal monozygotic twins.finding0.789
  Demonstrates mammalian regulative capacity and robust self-organization.
• Embryos cut into pieces across many species produce normal monozygotic twins/triplets rather than half-bodiesfinding0.786
  Classic regulative-development evidence for goal-directed (not merely mechanical) morphogenesis.
• "the number of embryos emerging from the excitable medium of an embryonic blastoderm is not genetically fixed but determined in real-time by physiological processes"quote0.778
  Key finding establishing that biological individuality is dynamically determined by collective coordination, not hardwired genetics.
• Stress-sharing embryos achieve perfect sequential target patterns; non-sharing limited to <1% improvement.finding0.761
  Stress-sharing embryos formed each sequential target with stress reducing to zero; non-sharing achieved only tiny improvements.
• Mouse neural crest cells grafted into chicken embryos successfully form teeth (Mitsiadis et al. 2003)finding0.747
  Neural crest collective navigates a foreign embryonic environment to achieve its morphogenetic goal.
• How many individuals are present in an embryonic blastoderm?question0.738
  Questions the fixed-ness of individuality and points to the dynamical determination of embryo count.