essay on frogs, all around -
Frog is the common name for a species of
amphibian that also includes toads. A very common
question is "whats the difference between frogs and
toads?", the answer: none, except for the fact that toads
lack the powerful legs that frogs have. "Where can frogs
and toads be found?", one might ask. They live in all
parts of the world, except for Antarctica, but are mostly
found in tropical areas. Frogs are small animals with
smooth moist skin, and big eyes that can see in almost
any direction. Most species have webbed feet and
powerful legs making them good jumpers, and excellent
swimmers. A frogs tongue is attached to the front of it's
mouth instead of the rear, and most frogs are very vocal,
especially the male frogs.
As a frog grow, it goes through many changes.
Starting out as a tadpole, and morphing into a frog.
Most frogs lay their eggs in water. Others will lay their
eggs some where safe, then carry them to water where
they hatch into tadpoles. At this stage they have gills,
no legs, and a tail. As they mature, their gills and tail
disappear, and they develop lungs and legs. This period
of tadpole life can be divided into three stages. The first
stage, called "premetamorphosis," lasts about 50 days
(Patent 54). The second stage, in which the hind legs
grow, is called "prometamorphosis," and lasts about 21
days. When the legs are about as long as the body, the
third stage, which is called "metamorphic climax," and
takes place very rapidly, begins. During this last stage,
which lasts about a week, many great changes occur.
They lungs complete their development, and the gills
disappear. The skin gets thicker, nostrils form, and the
tail is completely...