New atlas reveals chaotic early development in mammal embryos

Scientists have created a new atlas detailing early embryonic development in mammals, revealing that the initial cell divisions are chaotic and random. This contrasts with other animals, where development is more uniform. Once an embryo reaches eight cells, a shift occurs, bringing order to the previously chaotic process. The cells begin to organize, forming a structure common to mammals, which is crucial for developing tissues and organs. The study, published on October 10 in the journal Science, involved mouse, rabbit, and monkey embryos. Further research is needed to determine if the same process occurs in humans, which could enhance fertility treatments.