It's called natural selection. Basically, if there's a lion and there's a cat, the lion is going to compete with the cat, and the lion will take all the prey, and perhaps even eat the cat (CANNIBALISM!?!?), thus eventually making the cat extinct. I kept thinking of the Halo: Reach announcer: "Extermination!". :D Natural selection. It's why we have the internet while cats have catnip and litter boxes.
An organism that kills and eats all or part of another organism is called a carnivore.
Organisms who use another organism to flourish are called parasites.
mimicry
That's called a parasite.
A parasite is an organisms that lives in or on another organism to obtain food directly.
An organism that eats another organism is called a consumer.
An organism that kills and eats all or part of another organism is called a carnivore.
An organism living in another organism is called parasite.
parasite
If the organism is eating another its a carnivore.
These are called predators.
eating
A Parasite
Organisms who use another organism to flourish are called parasites.
Any organism that eats another organism is called a consumer.
An organism that eats another organism is called a consumer.
mimicry