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| Captured at the Mautern in Austria |
You know how on facebook you can have mutual friends with people you don't know. Well, mutualism is when two species of animals have a positive or mutual relationship. The fish and the duck in this picture have a mutual relationship because a study shows that one duck can increase the fish population. The ducks eat all the tadpoles, frogs, and other species, creating a good plentiful of duck droppings that help the pond become pollution free due to the carbon, nitrogen, and phosphorous from the droppings which increase the population of fish.
Bibliography:
http://www.fao.org/
*All pictures and drawings are original. Please don't copyright.
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