Why do most food chains not contain over 4 or 5 organisms in the food chain?

Food chains can be seen in a energy pyramid. There are rarely more than three or more links since each predators are more dominant than others. This also means that particular of animals are barely been eaten from other predators. In addition, through the energy pyramid, the reason why is because 10% of it's energy in each trophic level is used and 90% of it is lost which results of no more than four or five links ( Tertiary/ Quatinery consumers).