Frogs

I decided to do my independent study on frogs because I like them and think they are cute. Here are some facts about frogs. When frogs swallow their food, their eyes close and go down into their head to push the food down their throat. Frogs have very small shaped teeth on the upper edge of their jaw and also on the roof of their mouth. They don't have any on their bottom jaw. They don't use their teeth to chew, just to hold their prey in place until they can get a good enough grip to swallow. Frogs have very strong legs. They can jump over 20 times their own length. Frogs breath and drink through their skin. They absorb oxygen from the water through their skin in addition to what they breath in through their lungs. It is very important they keep their skin in good condition because they rely on the extra oxygen absorbed. Frogs secrete mucus through their skin so they stay moist. If their skin dries out they could suffocate. Frogs shed their skin pretty often, some as often as daily. They twist and turn and look like they have the hiccups to stretch their skin out. Then they pull their skin over their heads and eat it! Lots of frogs live between 5 and 12 years. Frogs largest protection from predators is how they camouflage themselves. Some frogs can change their color based on light, moisture, temperature and even mood.