First of all, the tibia and fibula have joined to form the tibiofibula and it has specialized in providing an excellent leaping and jumping basis. Man has two lower leg bones, but it seems natural that for the frog, these two have joined together in order to provide for the best solution in the environment the frog lives. The muscles are also adapted to provide excellent jumping skills and to support the lower leg bones, the tibiofibula.

Further more, the tibiofibula provides the best adaptation for swimming and thus covers the two main activities in the frog's life. In terms of swimming, if we look at a drawing of the frog skeleton, the tibio

fibula provides the entire mechanical and energetic impulse required in swimming. If we compare this to the human tibia and fibula, we are bound to see the difference: the human lower leg is adapted to walking. The two separate bones provide the necessary equilibrium in different situation, as well as the strength to push into the ground when walking.

If we look at these two types of bones, the leg bones and the 'arm' bones, we may see that these have gradually adapted themselves to the requirements of the frog's outer environment. The frog relies greatly in its movement on land on jumping, short leaps that are able to carry it speedily in the area around the pond.

The carpals have an important role in this sense as well. Wider, larger as proportional to the frog's body, over-dimensioned as compared to the rest of the body, they are, besides a larger area for landing, designed to facilitate a secure movement in the environment.

This is obviously not the case here. Because the frog's body is much more important in its evolution in the environment, because the body is needed to perform complex movement action, such as leaping and swimming, it is quite clear that the most important and the most numerous vertebrae should be in the abdominal area. Proportional to the frog's body length and skull/head weight, there is only one boned required to perform the usual sustaining action.

If we look at this brief analysis, we may see that most of the frog's skeleton is adapted for movement and kinetic-related operations. It seems natural, given that the frog's environment implies an excellent ability to get around fast, both in an aquatic and non-aquatic environment. On the other hand, some of the body skeleton, such as the mandible, also bears other functions, such as the feeding one.

The front legs in a frog are much more similar to those of a man. Indeed, the frog has, just like man, one upper arm bone, the humerus, and one lower arm bone, joined in frogs into the radioulna. The radioulna has the same functional explanation as the tibiofibula and is perhaps best used in swimming. On the other hand, the existence of a single hum

Some common words found in the essay are:
, lower leg, leg bones, upper arms, lower leg bones, tibia fibula, atlas bone, metacarpals metatarsals, frog's body, environment frog, proportional frog's body, environment frog lives, hand frog's, compared rest body, movement water, muscles adapted provide,
Approximate Word count = 1454
Approximate Pages = 6 (250 words per page double spaced)