The Sensor That Said Cow 207 Walked Forty Miles
A new activity sensor reports that Cow 207 walked forty miles in a day, and the Dublin crew solves the case by following the snacks.

When the owner bought a set of activity collars for the herd, I was one of the few skeptics. The collars tracked each cow's steps, her rest time, and her general mood, and they sent the information to a screen in the office that looked like an airport departure board. The younger crew loved it. I was waiting to see what would go wrong.
It took about a week. One morning I walked into the office to find the screen flashing a line of red text next to Cow 207. It said she had traveled forty-one miles the day before. The younger hands crowded around, whispering. Somebody suggested she had been stolen. Somebody else said she had gotten out and gone to Stephenville. Wendell asked if cows had ever been known to hitchhike.
We went out and looked at Cow 207. She was in her usual spot by the water trough, chewing calmly, looking as though she had never left. She had a long, relaxed face and a faint trace of something sweet on her chin. I looked at the trough. Then I looked at the path leading to it, and I saw a trail of crushed donut crumbs leading back to the break room.
It turned out that a few of the crew had been leaving bits of breakfast pastry on the back step, and 207 had figured out the schedule. She was making the loop between the pasture, the break room, and the trough forty times a day, in a tight little circuit, collecting snacks. The collar had faithfully counted every step. She had walked the equivalent of a marathon on donut power.
We put a stop to the pastry, and 207 went back to a reasonable pace. But I have to say the sensors earned their place that week. They found a problem no human would have noticed, and they did it with data. If you want to learn what skills you need to work with this kind of equipment, there are good overviews at ag careers resources, and I keep a running log of these at farm.FM.