Hydraulic fracturing, or fracking, is a process most often associated with shale gas extraction, but a team of researchers from Institut Curie at the Sorbonne, and the Center for Interdisciplinary Research in Biology at the College de France have concluded that self-fracking is the mechanism that moves an embryo (here, a mouse) from a radially symmetric accumulation of cells to a bilaterally symmetric blastocyst.
Click here for original story, Controlled hydraulic fracturing sculpts mammalian embryos into shape
Source: Phys.org