Predation is the biological interaction in which a predator feeds on prey. True predation is when a predator kills and eats its prey, but other forms of predation exist. Some examples of these are grazing and parasitism. Pictured is a lion. Lions are known for their true predation when feeding on large animals such as wildebeests, zebras, and buffalos. Even though a male lion is pictured, the hunting is typically done by a group of female lions. The lionesses kill their prey by using a strangling technique which causes asphyxia (deficient supply of oxygen).