Our ancestors did. Humans cultivated sheep from wild ancestors for easier harvesting of their wool, milk, and meat. The domesticated sheep that we know today a

Our ancestors did. Humans cultivated sheep from wild ancestors for easier harvesting of their wool, milk, and meat. The domesticated sheep that we know today are completely co-dependent on humans for survival. If we disappeared, they would all die. Maybe some would manage evolve back into some wild version.