Mate selection

Courtship displays are behaviors most often used by male members of a species to attract females. Scientists theorize that females use courtship displays to judge the condition of their potential mate or the quality of his genes.

Defense

behavior used by a nonhuman animal to avoid being harmed by another. This might involve defensive aggression against a potential predator or against a member of its own species, from its own group or an outside group, or animal escape behavior to avoid the source of harm.