Cells in the new legs also contained the fluorescent protein and glowed under a microscope, so the scientists could watch blastemas form and legs regrow in cell-by-cell detail.

• 新腿中的细胞也含有荧光蛋白，在显微镜下看也会发光，因此这些科学家可以逐个细胞仔细地观察芽基的形成和腿的再生。