Horses show hidden stress response when viewing wolf videos, study finds
A new study reveals that horses experience elevated heart rates when shown silent videos of wolves on screens, even though they display no visible signs of fear. This internal stress response suggests a psychological disconnect between outward behavior and physiological arousal in prey animals. Researchers found that male horses and dominant herd members exhibited stronger stress reactions than others. The findings challenge conventional assumptions that prey animals respond to predators with obvious panic-driven behavior. Scientists say understanding this hidden stress response is important for improving horse welfare and reducing risks to rider safety.
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