| They are preyed on by herons, cormorants, kingfishers, goosanders, large trout and eels. |
| The result, especially when heterotrophs are preyed upon by other heterotrophs, is a food chain. |
| Tadpoles and froglets can be preyed on by other frogs, crayfish, fish, turtles, and dragonfly larvae. |
| In addition to man, kudus are preyed upon by lions, leopards, and wild dogs. |
| Sponges are preyed upon by gastropods, polychaetes, asteroids, echinoids, turtles, and fishes. |
| A fish preyed upon by so many other wild creatures for food from its first days of life, to when it becomes a full-grown fish. |
