I am looking for a particular quote for a research paper by the dearly departed Toby Hemenway. I recall him saying one of Paul's podcasts (years ago) that, "the way to solve an animal problem is with another animal." For example, you have mice in the barn and you should get a cat to check that. Kind of on par with Bill Mollison's quote, "You don't have a snail problem, but a duck deficiency."
I am writing to ask help if anyone knows where Toby's quote would be in any of his publications? I wanted to quote him and give him proper attribution, but I need a reference; printed work would be first choice, the podcast reference would also work.