The mule is not a natural animal: it is a cross-breed between a donkey and a horse. It is useful to humankind though because it has the speed of one animal and the strength of the other. It is more intelligent than either of its parents, very loyal and extremely brave. Read about the remarkable history of this animal and its relationship to people (1,310 words).
Illustrated English short stories at 5 levels with glossaries and audio. Reading and listening practice for English learners.
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