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Horse Uncontrollably Shakes Head: Understanding “Headshaking”
A horse walks calmly across the field–suddenly it jerks its head up, repeatedly tossing it upward. What initially seems ...
New research by Smithsonian scientists suggests that preferences for certain sounds might be evolutionarily conserved ...
It is not unusual for laboratory monkeys to engage in abnormal repetitive behaviors (ARBs), such as pacing and hair-plucking.
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