Why UPenn's Semi-Feral Herd Ponies Don't Founder

Seeing ponies graze on lush pastures, you'd expect some to founder. Dr. Sue McDonnell explains why they don't.

Seeing the tiny ponies grazing on lush, green University of Pennsylvania pasture, you'd expect more than a few to founder. Find out why they don't from equine behavior researcher Dr. Sue McDonnell.

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