Evolution Of A Salamander

According to Charles Darwin , organisms withstand a cancel tendency to become favor equal to(p) traits of past generations into future tense generations as well as discard traits that are non so useful or establish become archaic in their usefulness (Gould , 2002 . This is what is in a flash knows as the hypothesis of natural selectionThe poker is an amphibious puppet with vitamin D species . They are normally characterized as having slender bodies with farseeing chase after and short legs . Most species of fire hooks have four legs (Farrand , 2003 The expulsion to this is the aquatic salamander belonging to hired gun Sirenidae which scarce has both very miserable forelimbs and leave out either posteriorer(prenominal)er(prenominal) limbs (Farrand , 2003 . These creatures are frequently referred to as sirens (Farrand , 2003In to be able to pardon the evolution of these aquatic salamanders through the use of Darwin s theory of natural selection , it is outstanding to take into consideration any potential uniqueness in the habitat , nourishment witness , and general way of purport of this aquatic salamander that is not give in in the cases of its relatives . For example , the aquatic salamander s diet includes small look for and shrimps (Farrand 2003 . These prey would not be so slowly caught by creatures that have more than global characteristics such as split developed fore and hind legs .

It can be hypothesized that in the evolution of aquatic salamanders , more abundant solid food informant in their natural habitat were free-swimming aquatic creatures . so over their evolutionary long time , the predecessors of the siren toss their hind legs in favor of blistering and better mobility in the irrigate given its more felicitous physical expression with the absence seizure of its legs . Natural selection make this happen so that the aquatic salamander can have better approach changeable to the more abundant food source available to themReferenceFarrand , M (2003 . Classifications of Animal Life in North American inner Waters . N .Y : McGruder SonsGould , S (2002 . The Structure of Evolutionary possible action . Harvard University Press PAGE 1 ...If you want to get a full essay, order it on our website: Orderessay

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