cience Daily reported that researchers at Tuft University have released never before seen patterns of bioelectrical signals outlining where eyes, nose, mouth, and other features will appear in an embryonic tadpole.
When stained with dye, hyperpolarized (negatively charged) areas shine brightly and others remain darker. The Tufts scientists discovered that in the pre-stages of face development bioelectrical signals (ion flux) cause groups of cells to form patterns marked by different membrane voltage and pH levels.
Dany S. Adams, senior author of the study, states, “We believe this is the first time such patterning has been reported for an enti