For information about the ADA, including the revised 2010 ADA regulations, please visit the Department's website www.ADA.gov; or, for answers to specific questions, call the toll-free ADA Information Line at 800-514-0301 (Voice) or 800-514-0383 (TTY).
Definition of altruism. 1  1 : unselfish regard for or devotion to the welfare of others charitable acts motivated purely by altruism. 2  2 : behavior by an animal that is not beneficial to or may be harmful to itself but that benefits others of its species.
Instinctive behavior. A relatively complex response pattern which is usually present in one or both sexes of a given species. These responses have a genetic basis, are essentially unlearned, and are generally adaptive.