Use of Tools by Horses

horse psychology, use of tools horses, history horses, equestrian history, how smart are horses, equine science update

By Mark Andrews

It used to be thought that using tools was one of the things that set humans apart from the animal kingdom. However, it is now known that some animal species use tools. Reports include chimps using sticks to reach food, sea otters using stones to break open shellfish, and even elephants deactivating an electric fence by dropping rocks on it.

What about horses? German zoologist and behaviour researcher Konstanze Krüger and coworkers conducted an investigation into “unusual” behaviour in horses.

The topic did not lend itself to conventional methods. Instead, they collected reports and video records of unusual behaviour using a dedicated website. They also searched online for videos showing equids using tools.

Analysing 635 reports including 1014 behaviours, they found 20 cases of tool use, 13 of which they termed “unambiguous,” in that it was clear that the behaviour was not trained, caused by reduced welfare, incidental, or accidental.

Their findings are published in the journal Animals

The most frequent use of a tool was by horses using sticks to scrape hay into reach. Photo: (c) Krüger et al

They report that “the most frequent tool use, with seven examples, was for foraging; for example, equids using sticks to scrape hay into reach. There were four cases of tool use for social purposes, such as horses using brushes to groom others, just one case of tool use for escape in which a horse threw a halter when it wished to be turned out, and one case of tool use for comfort in which a horse scratched his abdomen with a stick.”

They then assessed the effect of management conditions on tool use and whether the animals used tools alone or socially involving other equids or humans. 

They report that management restrictions were associated with tool use in 12 of the 13 cases — such as the use of sticks to scrape hay within reach when feed was restricted. 

“Furthermore, 8 of the 13 cases involved other equids or humans, such as horses using brushes to groom others. There was just one case of tool use for comfort, and in this instance there were no management restrictions.” 

They conclude: “Equids therefore can develop tool use, especially when management conditions are restricted, but it is a rare occurrence.”

Konstanze Krüger. Photo: Wikimedia/Etron770

For more details, see Tool Use in Horses. K Krueger; L Trager; K Farmer; R Byrne. Animals 2022, 12, 1876. 

Related: Dogs and Horses - Man's Best Friends

Published with the kind permission of Mark Andrews, Equine Science Update. 

Main: Shutterstock/Beta757; Shutterstock/NotionPic; Horse Community Journals

 

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