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

Needle-Shy Horse Advice

Behaviorist Dr. Sue McDonnell offers step-by-step advice for helping a horse who’s afraid of getting shots from the vet.

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Gelding Behavior

My gelding has been dropping his penis more than usual. Could this be related to him being turned out with a mare?

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Dominance in Human-Horse Relationships

A Spooky Senior Horse

An equine behavior expert weighs in on how one reader can help her senior OTTB be less spooky at home.

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Common OTTB Behavior Traits

Common OTTB Behavior Traits

I’m considering purchasing an ex-racehorse. Are there any common behavior problems in OTTBs that I should be aware of?

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Feeding Type-1 PSSM Horses

Death of a Herdmate

Can the death of one horse lead to a complete change in another’s behavior or “personality”?

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The Ins and Outs of Temporary Horse Fencing

Electric Fencing

We just got a 4-year-old stallion at our barn, and I wanted to know if even with electric fencing will he be able to break out to get in with the mares that are in the paddock next to him?

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