Natural Selection And Artificial Selection

Many people are familiar with the words natural selection, an idea that was popularized by Darwin in the 19th century; to simply define it, natural selection is nature’s editing mechanism that results in the favoring of some individuals over others when exposed to certain environmental factors. Artificial selection parallels the process of natural selection but with an added twist: the involvement of human beings. Artificial selection is “a process in which humans consciously select for or against particular features in organisms” allowing “only organisms with the desired feature to reproduce or may provide more resources to the organisms with the desired feature” (Artificial Selection, n.d.).

Natural selection does not make the species unconditionally perfect. For instance, a rhino with two horns may have a better chance at defending itself than a rhino with one horn. A rhino with one horn may have a better chance at defending itself than a rhino with one horn. Though a rhino with one horn may be in the same environment as a rhino with two horns, they both have the ability to defend themselves if another animal attacks. However, natural selection and evolution is unavoidable. It is something that is always going to happen. As long as the environment can change, a species can change.

When Darwin coined the term “natural selection” he described another subset of it referred to as “Sexual selection”. Sexual selection can be defined as a special case of natural selection where rather than focusing on traits that serve to aid survival, organisms develop traits and behaviors in efforts to increase mating. Many times, these two efforts come in conflict with each other and tradeoffs arise. A male can be outcompeting another male through overall health and fitness, but be losing when it comes to gaining the females attention. Common examples of this tradeoff include peacocks maintaining elaborate tails but at the same time, making themselves more visible to predators, or fruit flies competing through dances to win the attention

What is sexual selection? Sexual selection is the natural selection arising through preference by one sex for certain characteristics in individuals of the other sex. This means they are copulating with their other mate. Sexual selection can be dangerous in some cases depending on the rate and length of copulating. It can be so harmful to species that they may not be able to survive from it afterwards.

With natural selection depending on the environment conditions, the phenotype confers can advantage or disadvantage the the indicidual with the phenotype relative to the other phenotypes in the popultion. If it is an advantage, then the individual will most likely have more offsprings that the individuals with the other phenotypes, and this will mean the the allele behind the phenotype will have greater representation in the next generation.

If natural selection is to result in the evolution of traits associated with adaptation within a given plant population certain conditions such as sexual reproduction, mutations, and gene flow, all of which facilitate genetic variation, must exist. While plants can reproduce asexually, those that reproduce sexually produce new alleles through genetic recombination. This allows for the emergence of new phenotypes, and subsequently new individuals, that are better suited for their environment. Likewise, mutations, which are changes in DNA, can add genetic variation to a population and create phenotypic changes. If these alterations result in individuals being better suited to their environment, natural selection will select for these traits,

Humans and dogs have lived together for hundreds of years. They are treated differently all over the world; some countries like to modify dogs’ genes to whatever they want. Pure breeding dogs have been accepted by all of humanity. It is our way of perfecting or changing something natures given. Why not do that to humans as well? We could create a super human race to go out and rule worlds. Oh well if a few die off from the breeding, that’s just the cost of achieving what you want. An article about the negative aspects of inbreeding stated,” selective breeding, otherwise known as artificial selection. It’s the exact opposite of natural selection, and it completely disrupts the purpose of evolution.” (This vs. now). If it’s no issue sending

What does it mean to be human? Is humanity defined by our biology or our morality? Some combination of the two? Or, is it merely the ability to ask this very question, or ones exceedingly similar in form? Darwin’s The Descent of Man attempts to provide a foundational understanding to how we all got to where we are, and what our origins might say about our present. In particular, the way in which evolution is applied to various species, natural selection, is said to dictate which members of a certain species survive according to their proclivities determined by genetics. A natural question to arise from the assertions of the theory of natural selection is how this applies to humans now. It’s not as if one could kill their boss in order to

Evolutionary thought and research has come a long way in the last few decades. While several factors have been identified as contributing to species evolution (Huxley 1942), natural selection is widely accepted as the main and strongest evolutionary force. However, Gould and Lewontin (1979: 581-598) argue there is a danger in trying to explain all evolution using an adaptationist programme where selection is the go to answer, even to the exclusion of other possibilities

In most cases sexual difference are with in species may intersexual or intrasexual, but according to Darwin there are other ways sexual difference can occur in a species. Within the species sexual difference can based on the genetics and the their genotypes. The species sexual difference can be based on what traits are being expressed. Take for instance the sex chromosomes where males posses the XY chromosome and females posses the ZY chromosome. When evaluating the chromosome in mammals, males have a penis to ejaculate sperm and females have mammary glands to produce milk for the young.

Scientist hypothesized that there is a 99.9% possibility than all existing plants and animals from the ancient times have already become extinct and only a few survived that later evolved into the organisms that are present today on Earth.

Humans are still evolving, “natural selection” is not happening in the same way due to changes in agriculture, technology and modern medicine (Connor, 2015). Humans respond differently to environmental pressures and have children later in life showing that the above factors also protect the human species from “The survival of the fittest” principle. (Connor, 2015).

Selective breeding; also known as artificial selection, this is a process of which humans can use animal or plant breeding to produce particular phenotypes from certain animals/plants for which that will sexually produce and have offspring together

Charles Darwin’s theory of natural selection explains the general laws by which any given species transforms into other varieties and species. Darwin extends the application of his theory to the entire hierarchy of classification and states that all forms of life have descended from one incredibly remote ancestor. The process of natural selection entails the divergence of character of specific varieties and the subsequent classification of once-related living forms as distinct entities on one or many levels of classification. The process occurs as a species varies slightly over the course of numerous generations. Through inheritance, natural selection preserves each variation that proves advantageous to that species in its

Artificial selection and natural selection are different forms of the same practice that Charles Darwin observed. Artificial selection is when man controls the breeding for a specific trait just like genetic engineering where scientists alter and clone genes to produce a new trait in an organism. At the same time, natural selection is based on environmental conditions. Natural selection is Darwin’s famous theory stating evolutionary changes that occur through the production of variation in each generation. Organisms that are best suited to their environment