Over the course of millions of years various environments have changed.As grasslands slowly took the place of forests the inhabitants were forced to adapt or they went extinct.During this time period the horse evolved from a small cat sized creature to the size of the modern horses we see today.This is an example of which type of natural selection?

Question

Quizplus · Accepted Answer

Directional natural selection occurs when a certain trait is favored over others, leading to a shift in the population towards that trait. In this case, the shift towards larger size in horses was favored as the environment changed from forests to grasslands, allowing for greater speed and agility in open spaces. This resulted in the evolution of larger horses over millions of years.

Over the Course of Millions of Years Various Environments Have