Many kids love frog but some of them hate it. Some kids think that frogs are cute but some other children think that frogs are disgusting. In fact, frogs actually are interesting animals. People can find the uniqueness of the frogs from the facts which will be explained below.
Amphibian
The very first thing which should be understood from the frog is that this animal is included as amphibian. It means that it can live not only on the land but also in the water. Yes, it can live in two different environments. The egg of the frog will be laid in the water and it will hatch into tadpole. The tadpole will make the water as its house until it accomplishes the metamorphoses and becomes adult frog. The tadpole looks like fish instead of frog because it has tails with long fin and gills will be used for breathing. It might be true that frog can live on the land but it has to be near the damp place such as pond or swamp because they can die if the skin dries out.
Useful Skin
It might be true that water becomes very important element for living things including for frog. Most animals usually will drink the water for fulfilling the water need of the body. However, frog will not drink the water. It still needs water but the water will be soaked into the body through the skin. The skin is not only useful for absorbing the water because it is also useful for absorbing the air needed. Skin becomes crucial breathing organ for frog besides the nostrils.
Unique Tongue
Compared to human being, frog surely has tongue which is completely different. Frog tongue is sticky and muscular. It is used for catching as well as swallowing the food. Another difference which can be found from frog tongue is that it is not attached to the back of the mouth. The frog needs to stick out the tongue as far as possible and this must be the reason why its tongue is attached to the mouth front side.
Unique Eyes
Frog also has unique eyes. It has the function for seeing not only forwards but also upwards as well as sideways at the same time. When sleeping, frog will not close their eyes. This mechanism is similar to fish after all. The eyes will also be used for helping the frog swallowing the foods.
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