Sexual selection

Eugenics was driven to some extent by reasons for alarm that present day foundations had put aside the beneficial parts of natural selection. Eugenicists persistently played on the specter of weak and sickly humans which was safeguarded through cutting edge prescription, cleanliness, and magnanimous organizations, while the more savvy and as far as anyone knows better individuals were…

Through time, evolution has shown to follow various different patterns. Evolution can be influenced by different factors such as predation, adaptation and environment. All these factors can alter the way in which organisms or species exposed to them may evolve. Convergent and parallel evolutions are to forms of evolutionary pattern that are often distinguished via the way phenotype evolve. When a certain phenotype evolves, the unexpressed genetic mechanisms that drive the expression are…

As Kimura argued, a lot of the genetic variation we see in our world today comes not only from natural selection, but also from genetic drift. Genetic drift explains nothing more than changes in the numbers of gene frequency in a population. This explains that not only will natural selection play an important role in populations, but will genetic drift as well. Kimura through a series of experiments and observations was able to determine that genetic drift had a lot to do with evolution and the…

Evolution by natural selection and predator induced phenotypic plasticity are mechanisms that have been proposed to describe the effect of crab predation on snail shell thickness. Biologist Robin Seeley hypothesized that the periwinkle populations of New England evolved by natural selection as the European green crab was introduced to the area (Seeley, 1986). The three requirements for evolution by natural selection are that there is variation among a population, the variation is partly…

Contributions of Charles Darwin Charles Robert Darwin was a British scientist best known for his contributions to the evolutionary theory and his theory of natural selection. Darwin came up with these theories in the late 1830s, but failed to publish them until the release of his book the Origin of Species in 1859. With pressure building from colleagues and scientists in the Far East, it is said that Darwin decided to rush publishing his findings. Charles Darwin’s theory of evolution was…

cognitive evolution. The Baldwin effect is a proposal that hereditary factors shape the genome as much as, or more than, natural selection pressures. Cognitive development has been established as a variation of a process that every individual goes through, however, there are key differences that have shaped our developmental aspects which have only furthered the natural selection process in humans. Just as much as the biological aspect of, “survival of the fittest,” the phrase can relate to the…

idea of common descent from modification as being a natural process of designing organisms. In the Origin of Species, Darwin wanted to explain design with evolution playing a role in it (Ayala 3). He writes, “According to Darwin’s theory of natural selection, the design has…

responsible for the evolution of certain animal behaviors and cultures. Dawkins's definition is a unit of information in a brain, exchangeable within a society. It results from an assumption that cultures evolve as living beings, and variations by natural selection. Like the gene, the meme is the basic unit in this…

His name was Charles Darwin, and in 1859 he published his scientific discoveries titled “On the Origin of Species”. In his book, Darwin wrote about the way animals evolved over time, by a process called natural selection. Natural selection is based off the idea that some organisms are more “fit” than others, and so nature chooses the most fit of a species to live, and the “unfit” to die. It is inferred that the fit organisms go on to reproduce and that is how certain traits…

=Natural selection and The Theory of Evolution were just two of the things that Charles Darwin conquered through the exploration of The Galapagos Island. Darwin was born on February 12, 1809, in Shrewsbury, England. In 1831, Darwin convinced Captain Robert FitzRoy to let him join him aboard the H. M. S. Beagle as the ships naturalist. They first settled off from England in 1831 for a five year voyage, Charles Darwin had an ambition for scientific research. After exploring the coast of South…