Why were stoats and ferrets introduced to New Zealand?

The other day, a colleague of mine asked: “Why were stoats and ferrets introduced into New Zealand? Do you know?”. I put on my best “all-knowing” face, and said “To control rabbits”. But even as I said it, I wavered with uncertainty, because it seemed so preposterous – a bit like the old lady who swallowed the spider (to eat the fly). Continue reading