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Geological Observations on the Volcanic Islands and Parts of South America Visited During the Voyage of H.M.S. 'Beagle'
During Charles Darwin's five-year voyage aboard the H.M.S. Beagle he visited the Galapagos Islands from which he explains his findings in this book. He explains for the first time ever, his fractional crystallization hypothesis of magma differentiation. This hypothesis was further defined in the 20th century. Darwin, Charles. Geological Observations on the Volcanic Islands and Parts of South
America Visited During the Voyage of H.M.S. 'Beagle'. London, England: Smith, Elder and Co, 1844. -
On the Tendency of Species to Form Varieties, and On the Perpetuation of Varieties and Species by Natural Means of Selection
This publication by Charles Darwin and Alfred Wallace is a collaborative piece concerning the beginning of the theory of natural selection. Though the mentioning of the theory is omitted due to criticism, it lays the foundation for further elaboration in Darwin's On the Origin of Species publication. Darwin, Charles and Alfred Russel Wallace. On the Tendency of Species to Form Varieties; and On the Perpetuation of Varieties and Species by Natural Means of Selection. London, England, 1858. -
On the Origin of Species
The publication of this book caused ripples throughout the world. Darwin's theory of evolution and how species evolve over time went against everything the church had taught for hundreds of years. His theory resulted in people questioning the validity of god. Critics wasted no time in challenging his theory of evolution, and scientists are still debating its validity today! Darwin, Charles. On the Origin of Species. London, England, 1859. Enjoy this short video:
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The Variation of Animals and Plants Under Domestication
Elaborating on his theory of evolution, Darwin focuses on both the similarities and differences between domesticated and wild plants and animals. Darwin also focuses on the ability for individuals to breed animals to obtain traits desired by humans to be used in various practices. The passing of these traits supports Darwin's theory of natural selection among animals in the wild. Darwin, Charles. The Variation of Animals and Plants Under Domestication. London, England: John Murray, 1868. -
The Descent of Man, and Selection in Relation to Sex
Working in concert with his book "On the Origins of Species" this publication focuses specifically on the evolution of humans. Evidence provided by Darwin had serious impacts on scientific and religion thinking. The book also caused caused controversy on the age of the planet, the role of humans within the universe, and the origins of the human race on planet earth. Darwin, Charles. The Descent of Man, and Selection in Relation to Sex. London, England: John Murray, 1871.
