sentence: Many adaptations serve more than one function.
sentences_after: This is often the reason some traits become so noticeable that they almost define the species concerned. The antlers of male deer serve a sexual function as well as a defence against predators. Man's large brain serves not only for language, but also for thinking and problem-solving.
concept_name: adaptation
headings: Adaptation Functions of adaptations Adaptations with multiple functions
categories: Evolutionary biology Ecology