How is an animal's internal life (i.e., its physiology and anatomy) integrated with its behavior? Sensory systems provide information from outside the animal that, when integrated, shape behavior.

Researchers at the National Institute of Mental Health (NIMH), part of the National Institutes of Health, have discovered a genetically controlled brain mechanism responsible for social behavior in ...

Scientists have recorded same-sex behavior across many animal groups, including mammals, birds, and reptiles. Still, the meaning of that behavior depends on the species and the context. Behavior that ...