A careless raccoon could become a victim of an alligator or, in Central and South America, a crocodile or caiman.
I think birds or bears or raccoons or anything really . ..
A secondary consumer is a small predator that eats the primary consumer. In a pond, secondary consumers may be raccoons, snakes, and frogs.
A pond man.
Raccoons are found in a wide variety of habitats, including swamps.
raccoons are usually the culprits, cats dogs and even birds can do it, is this a small pond in a garden or near a house, , if you live in a warmer climate it may be turtles snakes or gators in a much larger pond... leaving moth balls or staking a piece of bar-soap near the pond will usually get rid of unwanted pests
raccoons
Raccoons generally live near a permanent water source - a pond, lake, stream or river.
Sometimes raccoons eat puke.
raccoons, mice, foxes
Snails and some fish eat algae and both are eaten by raccoons
snakes
humans, and raccoons