| http://www.w3.org/ns/prov#value | - Their big heavy hooves trample the soil, eroding it often beyond repair.Just as the cow is an invasive species, an exotic in the West ??? an import of Spanish missionaries in the 16th century ??? it brings invasive weeds that triumph in its midst: the water-greedy tamarisk, for example, along with the greedier Russian olive and the useless Russian thistle, better known as tumbleweed.
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