Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Chimpanzees spontaneously console distressed individuals by means of friendly body contact. Loudly screaming after having lost a fight against a rival, an adult male (right) is approached by a juvenile who puts an arm around him. Photograph by Frans de Waal.
