Invasive plants

[Nold]

Cattle are far from stationary.

Cattle are stationary. They are not allowed to roam freely, like bison did, anywhere in North America. That's why barbed wire was invented.
The selective grazing you mention is the result of human intervention and not a replication of a natural situation, since cattle, unlike bison, are property. They might be able to replicate the actual act of mowing down grasses, but then, so could a lawn mower.


Bob