It's a great time of year to meet with the giant Amazonian leech. Its kind is just emerging from the bottom muck, where they dug themselves in to wait out the three-month dry season. They'll be ...

You could show it to me. Here you go, boss. I'm sorry. Oh, no. This. This is Attack of the Giant Leeches. Oh, that sounds great. Leeches are great when they are small. I can't imagine how great a ...

A rare breed of blood-sucking leech is being bred at London Zoo in a bid to save the UK’s largest native leech species from extinction. The medicinal leech was once widespread in Britain ...

Medicinal leeches can grow up to 20cm (8in) long, making them one of the UK's largest native leeches. They can be found in a variety of freshwater habitats, including ponds, lochs, ditches ...