Those are some hard asses!
Is “asses” a word? 
They have their own parades, rigorous training and dedicated doctors. They are treated as fully fledged soldiers. Some villagers used to laugh at how much time the army spent on them. But now the mules of the Pakistani army are proving saviours for some of the tens of thousands of quake survivors still stuck atop inaccessible mountains.
BBC NEWS | World | South Asia | Beasts ease burden of quake victims