Diet and Feeding Habits
In general, the diet of a frog is largely made up of insects, although mites, snails, earthworms, spiders, and other small animals are also consumed. Smaller frogs risk being eaten by larger frogs, as cannibalism is not uncommon. While larger frogs will sometimes feed on fish, it does not appear that this is prevalent among Crinia georgiana. Occasionally, grass, seeds, petals, and other vegetation will be found in the stomachs of frogs, but this is assumed to be accidental. In other words, the frog eats the plants only because other prey was resting on it.
Most frogs catch their prey via a flick of their tongue. The tongue is coated in a sticky secretion, which allows for the adhesion of the prey to the tongue. The catch is then taken into the mouth and swallowed right away, as frogs do not chew their food and many do not even have teeth. Members of Crinia do have vomerine teeth, which are pairs of teeth-like plates on the roof of the mouth that slant inward, but they appear to be rather unimportant. Once the food is in the stomach, the stomach compresses and abdominal muscles aid in digestion and expulsion of waste.
Read more about this topic: Quacking Frog
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