There was a movie about an autistic woman that built cattle pens in curves. Movie was made in the 90’s …
Temple Grandin
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Temple Grandin
Another possibility is one of the prion diseases similar to Bovine Spongiform Encephalopathy, or BSE. Wasting Disease in deer is similar, and in humans Kuru or Creutzfeldt Jakob disease. Bad news in any respect, if it’s one of those.
YES -— and they work well because the cattle can’t see the danger ahead of them until it is too late to stop because of all the cows pushing behind them.