Natural Selection and Beak Length in Birds

Evolution is a process that affects all life forms on Earth and can be driven by various mechanisms. One of the key concepts in evolution is natural selection, where differential survival and reproduction of individuals due to differences in phenotype often leads to adaptations over generations. This process may also be influenced by factors such as genetic drift and gene flow.

Consider the following scenario: In a population of a certain species of birds, individuals with longer beaks are able to access food sources that are otherwise inaccessible to those with shorter beaks. Over generations, as food sources change and become more dependent on long beaks, what would you expect to occur in this bird population?