Editing Nearctic realm (section)

===Flora and fauna that originated in the Nearctic===
Mammals originally unique to the Nearctic include:
* Order [[Primate]]s – the first primate/proto-primate, ''[[Purgatorius]]'', originated in the [[Danian|Early Paleocene]] of the Nearctic.
* Family [[Canidae]] – [[dog]]s, [[Wolf|wolves]], [[fox]]es, and [[coyote]]s.
* Family [[Camelidae]] – [[camel]]s and their South American relatives including the [[llama]]. Now extinct in the Nearctic
* Family [[Equidae]] – [[horse]]s, [[donkey]]s and their relatives. Now only found in the Nearctic as feral horses.
* Family [[Tapiridae]] – [[tapir]]s now extinct in the Nearctic.
* Family [[Antilocapridae]] – last survivor of which is the [[pronghorn]].
* Subfamily [[Tremarctinae]] (short-faced [[bear]]s) – including the giant short-faced bear (''[[Arctodus|Arctodus simus]]''). The only surviving member of the group is the [[spectacled bear]] (''Tremarctos ornatus'') of South America.