In the beginning of the 19th century, there were 1 million rhinos. In 1970, there were about 70,000. Now there are about 28,000.
They reproduce every 2.5-5 years and the gestation period is 15-16 months. Twins are rare and babies spend about 3 years with mom. Their lifespan is about 45 years.
The oxpeckers who ride on their backs will call out and signal danger.
The horn has ABSOLUTELY NO medicinal value though alternative / traditional medicine still attributes cures for cancer, hangovers, impotence, fever and other ailments to the horn. In fact, the horn is made of keratin–the same as our nails and hair.
The horn carries a very high price on the black market–more than the price of gold.