Scientists Use CRISPR to Condense a Million Years of Evolution Into Mere Months

With its inquisitive eyes, furry snout, and lush pelt, the mouse--nicknamed Xiao Zhu, or Little Bamboo--nimbly perched on a bamboo stalk, striking a pretty pose for the camera. But this mouse doesn't exist in nature. Made in a lab in Beijing, Xiao Zhu pushes the boundary of what's possible for genetic engineering and synthetic biology. […]