There are three types of natural selection, which are given below:

Directional selection- It favors one extreme of a trait, due to which the population shifts to one side. Example- Giraffe neck

Stabilizing selection only favors the intermediate trait of one character; thus, it reduces the variation in a population. Example - Human birth weight.

Disruptive selection- This type of selection favors both the extremes of a trait and leads to the formation of two different groups. Example- Beaks of birds.