Behavioral

manner of behaving or acting.
Psychology, Animal Behavior.

observable activity in a human or animal.
the aggregate of responses to internal and external stimuli.
a stereotyped, species-specific activity, as a courtship dance or startle reflex.

Often, behaviors. a behavior pattern.
the action or reaction of any material under given circumstances:
the behavior of tin under heat.
Contemporary Examples

Why Every Home Needs a Drone This Holiday Charlie Gilbert December 7, 2014
Marriage Can Save the Middle Class David Frum February 3, 2013
Book Bag: How to Survive—Five Stories About Unlikely Survivors Claire Cameron February 10, 2014
August 8: 7 Best Moments From Sunday Talk The Daily Beast Video August 7, 2010
Do It Yourself, Senator Kerry Yossi Beilin January 16, 2013

Historical Examples

A Review of the Middle American Tree Frogs of the Genus Ptychohyla William E. Duellman
Humpback Whales in Glacier Bay National Monument, Alaska United States Department of Commerce, Marine Mammal Commission
Speciation and Evolution of the Pygmy Mice, Genus Baiomys Robert L. Packard
Neotropical Hylid Frogs, Genus Smilisca William E. Duellman
North American Recent Soft-shelled Turtles (Family Trionychidae) Robert G. Webb

adj.
n.

be·hav’ior·al adj.
behavior
(bĭ-hāv’yər)

see: on one’s best behavior