Leeches are enjoying a well-deserved resurgence in popularity now that modern medicine has discovered their usefulness in speeding wound healing by increasing blood circulation. This clip is a promo piece for Nova Science Now’s episode about leeches, with Mark Siddall, “lord of leeches” at the American Museum of Natural History. There’s lots more leechy goodness on NOVA Science Now’s Leech page, and here is Mark Siddall’s leech blog. If you are interested in raising leeches (!!!), here are some pages about raising and care.