In many species this is not reversible, the embryos die. But in 130 species of mammals, embryos can reverse and start developing again
pmc.ncbi.nlm.nih.gov/articles/PMC...
In many species this is not reversible, the embryos die. But in 130 species of mammals, embryos can reverse and start developing again
pmc.ncbi.nlm.nih.gov/articles/PMC...