Predator-Prey Relationship
A predator-prey relationship in the predator, the one that does killing, and the prey, the one that gets killed. In this relationship, the predator may deploy a number of tactics to catch the prey, such as lying in ambush, and the prey may also deploy tactics to escape the predators, like bait balls. However, as neither prey nor predator are 100% successful, this relationship almost always death of the prey or predator. The prey will obviously get killed if caught by the predator, and if the predator could not be able to catch sufficient prey, it will starve and die.
Harp seals (Phagophilus greonlandicus), an organism found in the icy arctic waters, often fall prey to killer whales. When a pod of orcas locate harp seals on a sheet of ice, each member of the pod takes turns bumping into the ice sheet and making large waves to knock the seal off of the ice. They then surround the seal and gradually tightens the circle and soon enough, capture the seal within their jaws. However, some harp seals are able to clamber ontop a larger iceberg or sheet of ice, thus saving their lives another day.