While they may perform the same functions, no two vaginas are alike. Together, your vagina and vulva have unique traits that define their shape, color, and size. Factors such as hormones, childbirth, ...
Researchers have created microscale robots less than 1 millimeter in size that are printed as a 2D hexagonal 'metasheet' but, with a jolt of electricity, morph into preprogrammed 3D shapes and crawl.