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 ...

Next month’s total solar eclipse is expected to confuse the heck out of animals and create some bizarre behavior — so scientists are staking out zoos and asking people to take notes on their pets for ...

Instinct / Charles Darwin -- Introduction / George C. Romanes -- Introduction / E. L. Thorndike -- What is behaviorism? / J. B. Watson -- Critique of Konrad Lorenz's theory of instinctive behavior / ...

Gut bacteria create smells that influence behavior, shaping aggression and social hierarchy through the brain.

It is not unusual for laboratory monkeys to engage in abnormal repetitive behaviors (ARBs), such as pacing and hair-plucking.