FORAGING BEHAVIOR AND TERRITORIALITY
Foraging, or feeding behavior is very complex. It involves locating, selecting, and gathering or capturing food, as well as interspecific and intraspecific competition. Foraging is also affected by other factors. For example, many plants have evolved antiherbivore defenses such as thorns or poisonous chemicals on or in the plant—poison oak and poison ivy are common examples. Many animals have antipredator defenses, such as fleeing, defensive posturing, fighting back, and cryptic coloration.

Territoriality refers to the tendency of many animals that live in a home range, a specific geographical area, for most or all of their lives to defend a portion of that home range. In many cases, animals engage in threatening or even violent behavior against other members of their own species (or sometimes against members of other species) who try to enter their territory. Birdsong is, in part, a form of territorial definition; the sound of a (usually male) bird informs his fellow birds that they are not welcome on his turf.

Can you describe specific defensive behaviors seen in the following animals: a baby deer, a mother bison protecting her young? What about territorial behaviors in house cats?