When Jack Cooper grew up on his family's Montana ranch in the early 1900s, cowboys on horseback managed the cattle herds. In today's not-so-wild West, pickup trucks round up the animals.
"Some of our men don't even know how to ride," says Cooper.
And now ranchers like Cooper, who produce breeding animals for other beef producers rather than beef for the table, use technology to round up not just cattle, but their genes.
Artificial insemination and embryo transfer allow ...