If you have any experience transporting horses, you’ve probably already noticed that they seem much more comfortable when travelling with a companion.
This is true; their heart rates and body temperatures are lower, they make less noise and less signs of discomfort.
But what if you have to transport a horse alone? Is there a way to keep them calm even without a companion?
The simple trick is: Put a mirror into the horse float.
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Just being able to see another horse (even if that horse is their reflection!) makes horses more comfortable when travelling.
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Solitary horses that could see themselves in a mirror made few noises and tossed their heads much less often than horses travelling alone.
So if you have an old mirror lying around, why not use it to comfort a solo-traveller?