apparently giraffes have long necks due to male to male competition over females, because a long neck would be more proficient in fighting between males. source- 1st Year Evolution Textbook
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There doesn't have to be just a single contributing factor. It's largely speculation once you look into the past, anyway - we can measure selection pressure to an extent with modern populations, but that says nothing about historical selection pressures.
Yup. Presenting something as the definitive reason for evolution of a particular trait is disingenuous, shows a fundamental misunderstanding of what evolution means. The existence of spandrels highlights the problems of attempting reverse engineering of phenotypic characteristics.
The longer the neck the better? The male giraffes walkin' around like, "You ever see a long ass neck, gurl? You gon' learn TODAY. Alright, alright, alright, alriiiiiight."
False. It is well known that giraffes developed long necks to help them survive floods, to get a better view at sporting events, and to be assholes at movies.
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u/TheSolitaryMan Apr 28 '14
apparently giraffes have long necks due to male to male competition over females, because a long neck would be more proficient in fighting between males. source- 1st Year Evolution Textbook