Peppermint Narwhal Creative - Happy Mule Day! 5 Facts Fast - Mule Equus asinus (donkey - male) × Equus caballus (horse - female) 1. Mules are the offspring of a male donkey
![Why mules aren't really so stubborn: New research shows they learn quicker than horses | Daily Mail Online Why mules aren't really so stubborn: New research shows they learn quicker than horses | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/07/04/article-2355279-0065CD6C00000258-165_634x474.jpg)
Why mules aren't really so stubborn: New research shows they learn quicker than horses | Daily Mail Online
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