Editing Supernormal stimulus (section)

==== Maladaptive behavior ====
Maladaptive behaviors are shown by organisms that display a preference for supernormal stimuli over naturally occurring stimuli. This is often based on instinct to gather as many resources as possible in a resource-sparse environment.<ref name=":1">{{Cite journal|last1=Goodwin|first1=B. C.|last2=Browne|first2=M.|last3=Rockloff|first3=M.|date=2015-10-29|title=Measuring Preference for Supernormal Over Natural Rewards|journal=Evolutionary Psychology|volume=13|issue=4|pages=147470491561391|doi=10.1177/1474704915613914|issn=1474-7049|doi-access=free|pmid=37924197 |pmc=10480800}}</ref> It can also be instinctual for certain species to select the supernormal stimuli that will suggest the best energy investment of the individual, often [[parental investment]].<ref name=":33"/> The selection of the supernormal stimuli must also simultaneously outweigh the cost of the behavior in order for it to evolve. This is shown in the cuckoo chick and the effects on host reed warblers.<ref name=":33"/> These parasitic chicks exhibit irresistible begging calls toward the parental host.<ref name=":33"/> This occurs as a result of selective pressures. The reed warbler increases foraging efforts to feed the parasitic chick and its own offspring.<ref name=":33"/> As a result, this shows a maladaptive behaviour of the host reed warbler as it is investing into a chick that is not biologically related, which does not provide reproductive fitness gain.