Sue McDonnell, PhD, Certified AAB

Sue M. McDonnell, PhD, is a certified applied animal behaviorist and the founding head of the equine behavior program at the University of Pennsylvania’s School of Veterinary Medicine. She is also the author of numerous books and articles about horse behavior and management.

Articles by: Sue McDonnell, PhD, Certified AAB

Hand-Feeding Treats

Hand-feeding treats creates the nuisance of horses and ponies constantly nudging and nipping at people.

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Tongue Games

My horse sticks out his tongue when he plays with his buddies. Why does he do it?

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Detecting Discomfort

One of the challenges with equine pain management is often simply detecting a horse in pain and to what extent

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A Studly Gelding

This year he started displaying stallionlike behavior when the mares he’s

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Nurse Mares

Dr. Sue McDonnell talks about what makes a reliable nurse mare.

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Compulsive Circling

Why does my blind horse constantly pace in circles in an anticlockwise direction?

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Rescue Horse Rehab

Do you have any advice on the emotional rehabilitation of horses coming to rescues from abusive situations?

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The Equine Compulsion to Crib

What options exist to treat behavioral vices? In my case, a 5-year-old mare that I acquired off the track this spring is a cribber–something I was not aware of before I got her home. I have tried a few options so far, with no positive result.

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Panicky Horse? Vitamin B Might Help

My gelding panics and becomes terrified when something changes in the environment. My veterinarian suggested vitamin B and sacking him out (systemic desensitization). Is there any evidence that vitamin B supplements help the abnormally panicky horse?

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Naughty, Nipping Pony

My pony is biting me. He got my arm twice and my bum once, and he’s even bitten my cousin. Now I am afraid of him. We’ve thought about using a muzzle, but others have said to just whack him hard on the nose. What do you think?

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