Vitamin D deficiency Master

We know vaccines painful, and by comparing horses at rest with horses getting vaccinated, we've been able to determine how they express pain visually. By looking at horses with disorders like colic, broken bones, wounds, and so on, we can determine their facial expressions during more severe pain.

At zookeeper school we were drilled through the pain faces of the most common lab animals and livestock. Nowadays I believe this has become a routine lesson in all animal related fields, but the general public still doesn't know that this is a thing that exists.

Here are all the pain face/grimace scales I've been able to find. Please study them if you interact with any of these animals on a regular basis:

A YTP of a bowhunting instructional VHS. I picked up a copy of this tape at a flea market and was delighted to find that it had been digitized and uploaded to YouTube.

Initially I had some inexplicable technical headache with the project file and had to start the whole thing over, but I'm happy I could preserve what I'd started and produce a hefty 10+ minute video.

Full YTP with captions here!