Researchers have for the first time mapped the genome of the European medicinal leech (Hirudo medicinalis), one of the most prominently used medicinal species. The European medicinal leech (Hirudo medicinalis). Image credit: Sebastian Kvist. Today, two leech species — Hirudo medicinalis and Hirudo verbana — are used for healing practices based soundly in science, primarily for the replantation of digits or skin grafting surgery. Their...
