Southern White Rhinoceros at the Auckland Zoo (New Zealand)
At 1,8m height and 3,6 tonnes of weight, the white rhino is the largest of five rhino species and the third largest land animal. Their sense of smell is accurate and the main tool to find food, a mate, or checking for danger. They use scent marking as a way of communication, as well as grunts, snorts, bellows and whistles. Unlike elephant tusks, rhino horns are made of thousands of strands of very stiff hair.
Most white rhinos in Zoos are southern white rhinos; in 2001 it was estimated that there were 777 white rhinos in captivity worldwide.