3-day-old miniature horse chases after caretaker, on The Feed!

Some of the latest and greatest viral videos include a newborn mini horse making his first best friend and some brain-baffling parkour action.

Sammy, an adorable baby miniature horse, is only three days old. In his short time on this planet, he's already developed a favorite activity -- chasing around his caretaker Sterling Bartow.

The two get on so well, in fact, Sterling has already posted a second video of them horsing around.

When watching this video from Red Bull, you might think you're going crazy. You're not. Your eyes are deceiving you. Hence, the name "optical illusions." These are being carried out by professional freerunners Jason Paul and Pasha Petkuns and they are all "real" -- meaning none of these mind-bending tricks were created in some computer after shooting wrapped. It was all done in-camera.

How did they do it? Check out this behind-the-scenes video.

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