| − | '''Interbreeding ''' occurs when two nonhuman animals of two different species produce offspring. Examples of such offspring include the: | + | '''Interbreeding ''' occurs when two nonhuman animals of two different species produce offspring.<ref>interbreeding. (n.d.). The American Heritage® Dictionary of the English Language, Fourth Edition. Retrieved June 29, 2007, from Dictionary.com website: http://dictionary.reference.com/browse/interbreeding</ref> Examples of such offspring include the: |