The process is almost exactly the same as the salamander. The completely aquatic frogs, known as pipids, do not have tongues. Therefore, they have an entirely different means catching their food. They suck in food and water, the water leaves the mouth before it closes completely. Amphibians are no different than any other animal because they can be harmed by a wide variety of predators, parasites, and diseases.
Amphibians are also subject to many diseases.
Amphibians can be harmed by many parasites. While, most of the time parasites live without harm. Massive infections over an amphibian population has been known to cause great disaster. Infestations of the parasite, Carchesium have been known to clog the gills of tadpoles, causing retardation and death. Amphibians are prey for a great variety of predators because they are small and they have soft skin.