Giraffes have incredibly long necks that can grow up to 6'5 high! <br />This feature has intrigued researchers for a very long time (and still does). <br />So how do you explain it? <br />Originally, giraffes probably did not have such long necks. <br />According to the principle of natural selection of Charles Darwin, some giraffes had to have a neck larger than normal.<br />This gave them an advantage because they were able to feed more easily (at tree height).<br />They therefore lived longer and by reproducing, they gave birth to baby giraffes with long necks.<br />This is how the giraffes with small necks would have gradually disappeared and that giraffes with long necks would have become the norm.<br />This would be the result of a very long evolution in time.<br />But this might not be the only be the only explanation! <br />According to a recent study, the elongation of their necks could be due to competition with their fellow species for their sexual partners.<br />Indeed, males use their neck to fight when they want to conquer the same female.<br />However, the authors of the research were unable to explain why the females also had such long necks.<br />In any case, scientists are unanimous: there are a multitude of factors related to evolution.
