| − | '''Interbreeding ''' occurs when two nonhuman animals of two different species produce offspring. Examples of such offspring include the: | + | '''Interbreeding ''' occurs when two nonhuman plants or animals belonging to different species produce viable offspring.<ref>The American Heritage® Dictionary of the English Language, Fourth Edition: [http://dictionary.reference.com/browse/interbreeding"Interbreeding"]</ref> Examples of these offspring include common animals such as the [[mule]] and more obscure animals like the [[wholphin]] and [[liger]]. |