>>113202400Definitely more than most animals. They're herd based prey animals who's survival strategy is "panic as soon as anything scary happens, no matter what" and everything is scary to a horse.
A friend of mine raises horses. One of them panicked about something, maybe got stung by bee or a car backfired, tried to charge through a bush, got its neck stuck in the fork of a branch and kept trying to force through until it strangled itself, and he found it in the morning hanging there by its head. All it had to do was take one step backwards.
