Blog #4 Types of Selections

Directional variation is when a species have extreme variations in traits in an environment. An example of this are Greyhound Dogs, these dogs were breeded to have the greatest speed even running up to  40mph! Stabilizing selection favors the average traits in a population such as Siberian Huskies. All of the huskies have strong leg muscles so they could walk/run through dense snow easily. Disruptive selection favors the extreme traits in a species. An example of this could be birds with large beaks, by having these beaks they could survive longer than other bird with smaller ones.