The trunk is the elephant's feeding organ, but it doesn´t actually eat with it; it uses the trunk to grab food and take it to its mouth. Same with water.
Sparrows use their beak to grab food. Houseflies have a proboscis, a sort of tube to suck liquified food. As for many fish, they have protractile mouths which allow them to suck their prey in a fraction of a second; some fish like the moray eel have two sets of jaws to grasp and swallow prey, and some, like lamprey, have disc-shaped mouths with many sharp teeth to suck the blood of other fish (although wether lamprey should be considered real fish is not very clear).
Sparrows use their beak to grab food. Houseflies have a proboscis, a sort of tube to suck liquified food. As for many fish, they have protractile mouths which allow them to suck their prey in a fraction of a second; some fish like the moray eel have two sets of jaws to grasp and swallow prey, and some, like lamprey, have disc-shaped mouths with many sharp teeth to suck the blood of other fish (although wether lamprey should be considered real fish is not very clear).
