Selection

Theories of evolution started before Darwin’s specific one by natural selection. The most prominent and perhaps influential on Darwin was Lamarck’s theory of “evolution by willing”, or that physical changes during an animal’s lifetime would be passed to offspring, in that it laid the foundation for his more developed explanation for evolution (Mayr, 1982). Darwin believed in evolution several before developing his theory of natural selection, he objected to Lamarck’s theory due to the lack of…

whoever is America’s strongest. Over time and after studying species throughout several centuries, it became apparent to Darwin that the process in which species survived was called natural selection. Darwin studied the important geographical distribution of species and found that in order for natural selection to occur the parents of the offspring must have important inheritable traits that would allow them to thrive in whatever conditions that surrounded them. It is simply comparative…

Natural selection is part of the theory of evolution, which dictates that the individuals of a species best adapted or possessing traits most beneficial for survival in their environment, will survive to produce more offspring than those less adapted. Therefore, more favorable traits should begin to appear more frequently in future generations (“Evolution and Natural Selection”). Here, nature is able to regulate itself for optimal survival without interference. Natural selection also relies on…

This experiment is a hypothetical representation, modelling the effects of colour mutations in “prey” and vision mutations in “predators”, and their role in natural selection. This means that different materials in this experiment represent real-life organisms and environments. The sand-coloured background represents a sand environment, while the green background represents a grass environment. The individual conducting the experiment is acting as the “predator” (bird) and the tweezers used by…

offspring with that trait and actively grow in number since the trait allows them to better survive in their environment. This is natural selection. Natural selection is the force behind evolution. It is the process where individuals with mutations or traits that allow the individual to adapt to its environment tend to survive and produce more offspring. Natural selection is a key process for evolution, the change of heritable…

interesting article that helps explain really well the way that genes are passed on from generation to generation. Sexual selection is an important subject which sometimes creates many diversities. After reading the article, I can agree that sexual selection plays a very important role in the development of the human mind. Through generations, all living things came to sexual selection as the way out of obtaining an attractive and intelligent (in human cases) offspring. For the most part we…

considered very radical, and more specifically the concept of natural selection. The basic premise of natural selection is that the organisms that are more suited to thrive in their environment will be the most likely to survive over their competition, and subsequently this improves the species as a whole over years of gradual progression. Behavior can also be shaped by natural selection. However, it is important to note that natural selection is all relative and largely depends on the…

Natural Selection is one of the most important aspects of Evolution. Alfred Russell Wallace was the first to discover the process of Natural Selection along with Charles Darwin. Although Alfred Russell Wallace was the first to discover the Evolutionary Process Darwin was the first to publish the basic principles of Natural Selection. Natural Selection is the process by which qualities are passed on from parents to offspring to make it more likely for an organism to survive and successfully…

know as sexual selection. This proposed mechanism can explain characteristics like plumage of peacocks, fight in elephant seals over females mate, longer neck in giraffes to exhibit dominance in females and so on. These characteristics contradict natural selection (survival of fittest). Sexual selection can be divided into two processes, namely intersexual and intrasexual selection (Buss, 1986). Peacock tail which is against natural selection is an example of intersexual selection and…

as one of the cornerstones in biology, had a rocky start. In order for Darwin to convince his peers that natural selection was the mechanism behind evolution, he blurred the line between man and animals, leaving man as no different than the rest of the animal kingdom. Those who read On the Origin of Species and The Descent of Man were familiar with arguments about artificial selection (breeding) that Darwin used to make his point. Once Darwin convinced man that he was an animal, man began to…