Detail that zoochosis can come from a variety of factors, including social isolation, small enclosures, noisy visitors, and lack of enrichment. Explore how zoos are working to reduce zoochosis through ...

Behaviors often include lying, impulsiveness and aggression. Many of those who've exhibited lifelong antisocial, aka sociopathic, behavior -- lying, impulsiveness, aggression, lacking concern for ...

The treatment of head lice might be worse than the actual lice. (Photo: Getty Images) A disturbing new study has linked a common chemical found in head lice treatments to behavioral difficulties in ...

More than 100 recent cases of delirium, hallucinations and other unusual psychiatric behavior in Japanese patients treated with Tamiflu should have parents watching for similar reactions when treating ...

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 ...

A tiger walks the same worn groove along the edge of its exhibit, like a broken record. A parrot methodically plucks out its own feathers until bare skin shows through. To a casual visitor, these can ...