Definition - What does Predator mean?
Predators are animals, birds, plants or micro-organisms that kill and feed off other organisms in order to survive. Predators are generally seen as being at the top of food-chains, since they will usually have few natural enemies and consume prey species.
Safeopedia explains Predator
The presence and health of predators is generally seen as an indication of the overall health of ecosystems. Environmental pollutants pass through the food chain and become more concentrated with each level. Thus, predators are most vulnerable to toxins in the environment. Predation takes on many forms, but the common feature is that the prey species is killed in the process of consumption.