In a few years time, there may well be no rhinos left alive. And when I say no rhinos, I do not mean “none left in the wild”. I mean none in the zoos either. The captive animals will have been killed too. The reason for this is an insatiable desire among some people for rhinoceros horn – a material thought by some to possess magical healing powers. It’s really just a mass of keratin – the same substance that your hair and fingernails is made from. There is good money to be made from this trade. International criminals have stopped at nothing: butchering animals all across Asia and Africa, even breaking into museums to steal horns for the black-market. Some say it’s worth more per gram than cocaine. In pursuit of an odious delusion, we are witnessing the imminent extinction in our lifetime, of an animal, variants of which…