Changes

For example, one aspect of the definition of ''species'' is that to be considered the same species, living things have to interbreed ''naturally''.

For example, one aspect of the definition of ''species'' is that to be considered the same species, living things have to interbreed ''naturally''.

Thus two groups of squirrels on opposite sides of the [[Grand Canyon]] are classified as two separate species despite being able to interbreed, because they cannot do so naturally, due to being separated by the canyon.<ref>Lubenow, Marvin L., [http://www.answersingenesis.org/docs2007/0214hobbits.asp “Hobbits” were true humans!] 14th February, 2007 (Answers in Genesis)</ref>

Thus two groups of squirrels on opposite sides of the [[Grand Canyon]] are classified as two separate species despite being able to interbreed, because they cannot do so naturally, due to being separated by the canyon.<ref>Lubenow, Marvin L., [http://www.answersingenesis.org/docs2007/0214hobbits.asp “Hobbits” were true humans!] 14th February, 2007 (Answers in Genesis)</ref>

As ''species'' is defined by the ability to interbreed, it is impossible to determine the species of creatures known only from the [[fossil]] record, but [[palaeontology|palaeontologists]] categorise fossils into species anyway.

As ''species'' is defined by the ability to interbreed, it is impossible to determine the species of creatures known only from the [[fossil]] record, but [[palaeontology|palaeontologists]] categorize fossils into species anyway.

Young-Earth creationists have coined the term ''[[baraminology|baramin]]'', from the [[Hebrew]] words for "created kind" and have begun researching and classifying living things according to their ''baramin''.

Young-Earth creationists have coined the term ''[[baraminology|baramin]]'', from the [[Hebrew]] words for "created kind" and have begun researching and classifying living things according to their ''baramin''.