evolution theory

1000 words, MUST BE SINGLE SPACED!!!!
The citation page must be numbered and when referencing the source in the paper match the number source in citation to what was used in the paper at the end of the sentence. 

Discuss the theory of evolution by natural selection as proposed by Charles Darwin and Alfred Wallace around 1850s.    Discuss how modern day view on evolution may differ from their original theory.  Use at least one exam from the article referenced below or from Darwins masterpiece work on Origin of Species and 2 other MODERN DAY examples to illustrate how evolution may work and how these organisms evolve to be more adapted to their respective environment. 

Grading structure: Expected length of essay:  around 1000 word (around 2 pages single spacing).    The essay will be graded based on overall impression.  70% for content and 30% for Presentation.  Presentation includes style of writing, overall structure of essay, suitable use of paragraphs, spelling, grammar, vocabulary, overall language proficiency, originality, use of references, etc.  Your essay will be checked against known web sources of materials for originality. 

Type your essay in MS Word and save it as a docx or pdf with your name in the file (e.g. JaneDoe-evolution essay) , and upload in here.  Your submission will be checked against “Turnitin” for originality.   Email submission will NOT be accepted.  

Reference: Darwin and Wallace (1858).  On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection.    Published by: Evolutionary Biology Group, Linnean Society of London, Down House, Luxted Road, Downe, BR6, UK and