BY KRISTIN HUGO ON 11/1/17 AT 1:57 PM EDT
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TECH & SCIENCECATTLEANIMALSANIMAL INTELLIGENCECOW
There are brains in the barnyard, according to a literature review published this week about cattle intelligence. The paper summarized a selection of peer-reviewed research that demonstrated bovine cognition, and determined that the animals can have “Eureka” moments, can be optimistic or pessimistic, are affected by painful experiences, protect their calves, and can recognize their friends.
The peer-reviewed paper, called The Psychology of Cows, was published in the journal Animal Behavior and Cognition and was funded by the animal-welfare-education endeavor The Someone Project. The Someone Project describes itself as “Farm Sanctuary’s latest effort to introduce people to who farm animals are.”
The goal of publishing the paper was to improve the general understanding of cow intelligence.
“We wanted to dig into the objective scientific literature [on cattle] and say, ‘What do we know, who are they?’ and then put that back out to the public domain,” said Lori Marino. Marino is a neuroscientist and former faculty member in Neuroscience and Behavioral Biology at Emory University, and is also one of the authors of the paper.
Marino and Florida State University PhD student Kristin Allen cited more than 200 papers from 22 major journals and summarized indications of cow psychology, personalities, and intelligence. For example, dairy calves run around and play less after they have endured the procedures of disbudding, or having the buds of horns cut out of their head with a hot iron and without anesthesia, according to the journal Applied Animal Behaviour Science. The review paper considers the less active, dehorned cattle are pessimistic, whereas the more playful animals are optimistic.
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Cattle also can discriminate between people who handle them roughly and who are gentle with them, preferring to stand closer to those who had been gentle with them before. (However, the study indicated that their actions are also partially influenced by the color of the overalls that people are wearing, if they are the color that the gentle or rough person was wearing as well.) When a mother cow sees an unfamiliar vehicle approach, she will also put her body between the vehicle and her calf, presumably to protect it.
Marino also says that cattle can experience “Eureka” moments. In research published in Applied Animal Behaviour Science, researchers observed cattle who were given a reward after completing a task, and gave the same reward to other cattle who had no control over their rewards. By measuring heart rate, they determined that the cattle who could control their own fate got more excited than the ones who were rewarded passively. This could be interpreted as cattle having an emotional reaction to finishing a puzzle, not just getting food.
It’s notable that, while the literature review cites peer-reviewed research, the paper itself could be influenced by a desire to improve the welfare of farm animals. The Someone Project, which funded the paper, is a joint endeadvor between Farm Sanctuary, a farm animal protection organization that runs three shelters for farm animals like cattle, and the Kimmela Center for Animal Advocacy.
Furthermore, in the same issue of Animal Behavior and Cognition, several other authors published their commentaries on the paper, with positive and negative takes. One called it ” a case of over-interpretation and personification,” stating that the authors anthropomorphize the animals, or compared them to humans when they shouldn’t have.
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