A tiger walks the same worn groove along the edge of its exhibit, like a broken record. A parrot methodically plucks out its ...

You can't prove normality, and its definitions are constantly updated The problem in mental health is you can’t prove you are normal, but for some reason, many seek to prove you are abnormal as a good ...

Many people seem to think calling a dog good, bad, happy, sad, aggressive, stubborn, bold, shy, vicious, alpha, pessimistic, optimistic, or abnormal can help us understand what they’re thinking and ...

Across captive settings, nonhuman primates may develop an array of abnormal behaviors including stereotypic and self-injurious behavior. Abnormal behavior can indicate a state of poor welfare, since ...