Editing Evolutionary psychology (section)

====Learning and facultative adaptations====
In evolutionary psychology, learning is said to be accomplished through evolved capacities, specifically facultative adaptations.<ref name=LearningG8>Gaulin and McBurney 2003 Chapter 8.</ref> Facultative adaptations express themselves differently depending on input from the environment.<ref name=LearningG8/> Sometimes the input comes during development and helps shape that development.<ref name=LearningG8/> For example, migrating birds learn to orient themselves by the stars during a [[critical period]] in their maturation.<ref name=LearningG8/> Evolutionary psychologists believe that humans also learn language along an evolved program, also with critical periods.<ref name=LearningG8/> The input can also come during daily tasks, helping the organism cope with changing environmental conditions.<ref name=LearningG8/> For example, animals evolved [[Pavlovian conditioning]] in order to solve problems about causal relationships.<ref name=LearningG8/> Animals accomplish learning tasks most easily when those tasks resemble problems that they faced in their evolutionary past, such as a rat learning where to find food or water.<ref name=LearningG8/> Learning capacities sometimes demonstrate differences between the sexes.<ref name=LearningG8/> In many animal species, for example, males can solve spatial problems faster and more accurately than females, due to the effects of male hormones during development.<ref name=LearningG8/> The same might be true of humans.<ref name=LearningG8/>