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There is only one species, but two subspecies, the northern bald eagle and the southern. There are also several races, but all belong to the same species.
ALP
muslim
'On the Origin of Species by Means of Natural Selection , or the Preservation of Favoured Races in the Struggle for Life .' - Charles Darwin
Not as a species, but a couple of races are in trouble. See IUCN Redlist.
rabbit
When someone refers to an interracial couple means that people of the couple belong to different races. For example, an interracial couple would be a couple formed by a Chinese and an African.
Depends upon what species they are; however, generally among mammals, newborns are pink. Humans for example though, have different races within their species, some are born with a darker skin tone than others.
As a species leopards are not endangered, but some races are. To see endangered races, check the IUCN Redlist.
There are no known "alien races", so the question is more or less meaningless even if "animal characteristics" was defined well enough for us to tell.
"The Origin of Species by Means of Natural Selection or, The Preservation of Favored Races in the Struggle for Life"
Some races are, as the Florida panther is endangered..