Inequality is not unique to human groups and societies. Individuals with relatively little power possess a variety of ...

A global analysis has found that urban animals are bolder and more aggressive, exploratory and active than their rural counterparts. The findings are published in the Journal of Animal Ecology.

Animal behavior research relies on careful observation of animals. Researchers might spend months in a jungle habitat watching tropical birds mate and raise their young. They might track the rates of ...

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 ...