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What do animals excrete?

In: Animal Life [Edit categories]

Answer:

pheromones

First answer by ID1109267693. Last edit by ID1109267693. Question popularity: 1 [recommend question].

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Which animal does not excrete?
I think that some types of jellyfish dont excrete.
Why would an animal not excrete?
Possibly because it is constipated. It depends on the type of animal and how long it has gone without excreting, but I would ask a vet, if possible. I knew a calf once that died of constipation.
Why do animals excrete waste products?
Because they eat food, like us. It has to come out too. . Waste products means it now useless, and remaining their will make you sick. But actually not all waste product is not totally "WASTE", C02...