“In my laptop bag were two packets of shaved rhinoceros horn. Two plastic Ziploc bags, the kind shopkeepers use when they bank a day’s cash takings. Ounce for ounce, the shavings were as valuable as gold, and far more valuable than drugs.”

These are the words of conservationist Grant Fowlds in his new book, Saving the Last Rhinos.

Fowlds smuggled the shavings from Vietnam back to SA to have them tested, as he wanted proof that “South African horn was being sold openly in Vietnam” and that it crossed airport borders easily...