When you eat something that upsets your stomach, you can take medicine. Frogs, however, fix an upset stomach in a very different way. The frog's stomach hangs out of the side of its mouth as it wipes it with its right hand.
Frogs eat mainly insects.
Occasionally, they swallow poisonous insects. When a frog eats a poisonous insect, it has to get rid of it quickly. The frog throws up it stomach and uses its right hand to scrape off the insect stuck to the stomach tissue. A frog's stomach is located off-center, so when a frog throws up its stomach, it sticks out of the mouth in an angle. Scientists who study frogs have found that a frog cannot reach its entire stomach with its left hand.