Frogs :: essays research papers

Frogs are amphibians in the drift Anura. The order Anura is broken down into 22 different families of frogs and toads. Although they belong to the equal order, frogs and toads are different in a lot of ways. Some of the to a greater extent distinct differences are their skin and where they live. Frogs usu entirelyy take a shit smooth wet skin and toads usually corroborate dry watery looking skin. Frogs make it most of their lives in or near water and toads spend more time on land. Amphibian means "double life." Frogs and toads each have two parts to their lives when they live on water and when they live land. A frogs life starts in the water when it is hatched from an egg as a polliwog. A polliwog looks very different from an adult frog. A tadpole has a tail, no limbs, and breathes through gills. After a while the tadpole goes through metamorphosis. During the change the frog grows limbs, the tail disappears, it uses lungs to breathe, and it doesnt have to live in w ater anymore. As a tadpole, the frog feeds mostly on vegetation. The tadpoles have a small rasping mouth suited especially for pelf algea from the bottom of ponds. Depending on the species, it can take a few weeks to a year or more for the tadpoles to become fully grown. Not all frogs hatch as tadpoles. Some species of frogs hatch as froglets. Froglets look in effect(p) like adult frogs but are a lot smaller. Froglets dont go through a metamophosis. Most species that hatch as froglets are ready in dry places. Frogs who live in dry places where rains are seasonal have to grow up quickly because a tadpole provide die if their temporary pond dries up. Adult frogs can live in water or on land, but it always needs to be near water so its respiratory organs dont dry out.