When they discovered horses, what did Native Americans do with the plains landscape?
Options:
- ocean
- dominated
- raised on farms
- play
- eat grass Let's give stream of consciousness first:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
When horses became widely available in 1600s, native Americans disrupted agriculture norms altogether and intensified hunting competition between Native American groups to become nomadic buffalo hunters. When native Americans discovered horses, they dominated or had a commanding position with plains landscape.
Therefore, the answer is dominated.