It weighs as much as a large car and can still run at more than forty kilometers per hour. This is the white rhinoceros, the largest of the rhinos. And no, it is not white: it is gray. Its name may come from a mix-up with the Dutch word meaning “wide,” because of its flat mouth, perfect for cutting grass like a mower. Its eyesight is rather poor, but its sense of smell and hearing are extraordinary. And its famous horn is made of keratin, the same thing as your fingernails. A little over a century ago, fewer than one hundred were left. Thanks to protection, there are thousands today. But poaching is still its greatest threat, and its relative, the northern white rhinoceros, no longer has any males. Every rhino counts.