Donkey

A donkey or ass was an equine species, often domesticated and used as a working animal.

Ecology
These creatures were often herded among other grazing beasts in order to protect them from wild predators, such as coyotes or wild dogs.

Diet
Donkeys were well accustomed to eating grass, requiring no separate fodder.

Rumors and legends
The appearance of donkeys could indicate the presence of Ilmater, the deity of suffering and martyrdom.