Changes

==Threats==

==Threats==

The single greatest threat to all species of rhinos is poaching by man, specifically a systematic killing of the animals for their horns, which are used in Chinese folk medicine in addition for use in ceremonial daggers in many Arab cultures.  Numbering well over 200,000 head in 1970, the population of these animals is now the following:

The single greatest threat to all species of rhinos is poaching by man, specifically a systematic killing of the animals for their horns, which are used in Chinese folk medicine in addition for use in ceremonial daggers in many Arab cultures.  Numbering well over 200,000 head in 1970, the population of these animals is now the following:

*White rhinoceros: 20,170 at end of 2010<ref>http://www.iucnredlist.org/details/4185/0</ref>.  Subspecies ''C. s. cottoni'' listed as critically endangered<ref>http://www.iucnredlist.org/details/4183/0</ref>, with two females only examples left alive; sole remaining male died on March 20, 2018<ref>https://news.nationalgeographic.com/2018/03/sudan-last-male-northern-white-rhino-extinct-spd/</ref>.  

*White rhinoceros: 20,170 at end of 2010<ref>http://www.iucnredlist.org/details/4185/0</ref>.  Subspecies ''C. s. cottoni'' listed as critically endangered<ref>http://www.iucnredlist.org/details/4183/0</ref>, with only two females alive; sole remaining male died on March 20, 2018<ref>https://news.nationalgeographic.com/2018/03/sudan-last-male-northern-white-rhino-extinct-spd/</ref>.

*Black rhinoceros: 4,880 at end of 2010.  Critically endangered<ref>http://www.iucnredlist.org/details/6557/0</ref>.

*Black rhinoceros: 4,880 at end of 2010.  Critically endangered<ref>http://www.iucnredlist.org/details/6557/0</ref>.

*Indian rhinoceros: 2,575, May, 2007.  Vulnerable<ref>http://www.iucnredlist.org/details/19496/0</ref>.

*Indian rhinoceros: 2,575, May, 2007.  Vulnerable<ref>http://www.iucnredlist.org/details/19496/0</ref>.