I find this very interesting. Why not actually. Horses are very smart animals, as are dogs.

Fascinating.

How common are 120-lb. horses?

Ms. Edie's observation that "horse intelligence lends itself well to guide work" was what caused me to slow down and take a closer look at this clip. I had been instantly skeptical when I read the headline, but her observations in the clip were what gave me pause. Thank you for the clip!

Not too common, enbar. At least, not that I think so.