# On the variety amongst dogs, or What is a species?

**URL:** <https://boards.straightdope.com/t/on-the-variety-amongst-dogs-or-what-is-a-species/406736>\
**Category:** Factual Questions\
**Created:** [June 4, 2007, 6:32pm UTC](https://boards.straightdope.com/t/on-the-variety-amongst-dogs-or-what-is-a-species/406736 "2007-06-04T18:32:25Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [June 6, 2007, 5:00am UTC](https://boards.straightdope.com/t/on-the-variety-amongst-dogs-or-what-is-a-species/406736/21 "2007-06-06T05:00:44Z")

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When I said that a St. Bernard can’t mate with a Chihuahua, I was indeed referring to the [Cadillac in a closet](http://www.straightdope.com/classics/a2_195a.html) problem. I’ve never done the experiment, but I expect they probably could be bred via artificial insemination.

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