Cattle might seem like lazy animals that could have nothing to do with the conquest and development of the United States, but they are one of the main reasons that America exists.
If it weren't for cattle, Europeans would most likely have never discovered America and conquered the Americas.
Cattle helped Europeans discover and thrive in the Americas. Cattle continue to be an important food source today across the world. So this lazy, not intelligent animal is actually critically important to the conquest and development of the Americas.
My sources are: Hoffman, M. Peter. "Cattle." World Book Student, World Book, 2017, www.worldbookonline.com/student/article?id=ar100720. Accessed 21 Apr. 2017. Images from image quest.