“The affinities of all the beings of the same class have sometimes been represented by a great tree.I believe this simile largely speaks the truth. The green and budding twigs may represent existing species; and those produced during former years may represent the long succession of extinct species."

- Charles Darwin, "On the Origin of Species."

Other names for Evolution are Natural Selection and Darwinism.

Sources; google.com & goodreads.com

Evolution; The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Darwin's contribution to science was his Theory of Evolution, which happens to be one of the greatest contributions given.
He is now known as the Father of Evolution.

Although Darwin was ridiculed for his blasphemous ideals, today he is a renowned naturalist. His ideas are no longer theories, but proven facts.

Sources; pewforum.com, google.com

On the HMS Beagle ship in 1831, Darwin traveled the world for 5 years. Being the ship's Naturalist he was able to study and observe a verity of plants and animal life. Darwin's greatest experience was on the Galapagos Islands. It was there he obtained the information his theory would be founded on.

Sources; users.hol.org

Naturalist Charles Darwin was born in Shrewsbury, England, on February 12, 1809. Darwin loved to explore his backyard as a child. His father sent him to Medical, but when Darwin could not handle the study the young man was sent to become a man of the cloth. He excelled with natural science. In 1831, he embarked on a five-year survey voyage around the world on the HMS Beagle. His studies of specimens around the globe led him to formulate his theory of evolution and his views on the process of natural selection.

Darwin is given credit for his Theory of Evolution, which is explained in his book, "On the Origin of Species."

Source; google.com

At the age of 22 Darwin received and invitation to bored the five-year voyage. The HMS Beagle was sent on an expedition around the world. Darwin was the ships new naturalist. His purpose on-bored was to be curious. He was charged with studying and collecting samples of nature of the exotic locations they explored.

For five years he explored the Cannery Islands, South America, Galapagos Islands, Tahiti, New Zealand, Australia, and the Southern tip of Africa.

Source; amnh.org

Darwin also found Giant ground Sloth Fossils. Some were as big as elephants. Charles Darwin found the specimen in the cliffs of Punta Alta. Its scientific name is Mylodon. This was also a key to Darwin's theory.

Sources; google.com

Hutton and Lyell studied rock formations and changes in Earth and came to the conclusion that the Earth was very old. Lyell wrote the book Principles of Geology this explained how old he believed the Earth was according to his studies. Uniformitarianism is the what these men called this theory. Uniformitarianism is the belief that changes in the Earth are caused by specific events.

Sources; google.com

Malthus wrote "Essay on the Principle of Population" (1798), which Darwin read and was inspired by. The central theme of Malthus' work was that population growth would always overpower food supply growth, creating perpetual states of hunger, disease, and struggle.

Source; google.com

Lamarckian Inheritance. The second part of Lamarck's mechanism for evolution involved the inheritance of acquired traits. He believed that traits changed or acquired over an individual's lifetime could be passed down to its offspring.

Source; goole.com

Natural Selection; the process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.

"Survival of the fittest," in Charles Darwin's theory of Natural Selection is the genes with better fitness to their environment are passed on through reproduction.

Sources; google.com

In 1832, Darwin was along the coast of
Argentina, exploring the Bahia Blanca, he discovered fossils in two locations.

a) found outer-shell of an extinct form of armadillo.

b) found bones of extinct giant ground sloths.

Sources; darwins-theory-of-evlolution.com & britannica.com

These Fossil found very closely resembled armadillos and sloths that are native to South America.

Sources; darwins-theory-of-evlolution.com & britannica.com

DNA structures; genetic traits that have similarities of extinct animals in the genetic code make up.

Sources; darwins-theory-of-evlolution.com & britannica.com

Vestigial; The small structures that have no use in organisms.

Homologous; Demonstrates that while a species may use structures for different purposes, species share a common ancestor.

Analogous; Demonstrates the similar genetic traits of different animals due to their environment.

Sources; darwins-theory-of-evlolution.com & britannica.com

The Physical Environment
(ice, rain, heat, cold) causes organisms to adapt to their specific environment.

Such as:
-Fur to protect from cold (wild dogs/birds)
-Rubbery skin for water animals (whales/penguins)
-Outer shells for animals in dirty/hot places (armadillo/snakes)