After finding out on the programme last week that New Zealand has native leeches, we were keen to find out more.
And we had several very helpful texters say: 'Hey, there's actually a farm that breeds leeches in New Zealand, for medical purposes, no less! They were featured on Country Life a few years ago.'
Maria Lupton, who co-owns and operates a Waikato leech farm with her husband Robert speaks to Emile Donovan.