Some lemur species have a pseudo-scrotum with ‘skin identical in composition to that of the male’s scrotum’ and many boast a clitoris that superficially resembles a penis: elongated and pendulous yet stiffened by erectile tissue and an internal bone. The ring-tailed lemur’s clitoris is as thick and almost as long as the penis, with a urethra that sits within the shaft, allowing females to urinate from the tip, like a male. Ring-tailed females could ‘write their name in the snow’, joked Drea
