Arvin Ash

How does evolution actually work? Airplanes created from tornadoes? (2019x46)

Udgivelsesdato: Dec 06, 2019

Get Surfshark VPN at https://surfshark.deals/ArvinAsh - Enter promo code "ArvinAsh" for 83% off and 3 extra month free! How does evolution occur? How does natural selection work? Evolution explained. Common misconceptions. Evolution is one of the most tested, well-established theories backed by solid evidence in all of science. Yet, it remains one of the most misunderstood. Some common things you hear are: - Evolution makes organisms change to better suit their environment - Evolution occurs by random chance and mutations - Humans are the most evolved species - Evolution is just a theory so it’s speculation - If humans came from monkeys, there wouldn’t be any more monkeys - Thermodynamics disproves evolution Evolution is inherited change in a population of organisms over time resulting in appearance of new forms, under the influence of pressure from the environment. Note changes are in populations not individual organisms. Another point is that this change does not occur by random chance. Natural selection is the opposite of random chance. It is driven by a survival and reproductive advantage. Mutations are random but they are driven by a non-random process called natural selection. But the vast majority of these genetic mistakes are either neutral or harmful. Only about 0.01% are beneficial, meaning 99.99% of all mutations are neutral or harmful. Any variation that makes an organism more “fit” for survival is more likely to spread in the gene pool through through this process. A better fit organism does not mean that bigger, faster, or stronger individuals are favored. Only individuals that have a better chance for survival and reproduction are favored. Ultimately, evolution is not goal oriented or a linear process towards some kind of “progress.” It is simply about fitting best in one’s environment, and having the opportunity to reproduce. Some organisms may not change over long periods of time. Take the example of the American Alligat