Inner Fish evolution

Evolution: What is evolution? Over time, through millions of years plants and animals have changed over time, in order to increase their chances of survival as well as to adapt to their environment. Evolution doesn’t happen overnight, in a couple of days, weeks, months, or years. It is a slow process that takes a very long time to notice. “The word evolution can be used in many ways, but in biology, it means descent with modification. In other words, small modifications that occur at the genetic level (within the DNA) when a new generation descends from an ancestral population of individuals within a given species”. (strangescience.net, 2014) Over time the modifications fundamentally alter the characteristics of the whole population. When the population accumulates a substantial number of changes and conditions are right, a new species may appear. The main principle of evolutionary theory is that all living things including humans are related to one another through a common ancestor from earlier forms of life about 3.85 million years ago. Charles Darwin an English naturalist and geologist, was best known for his contributions to evolutionary theory. He established that all species of life have descended over time from common ancestors. “The term "natural selection" was popularized by Charles Darwin who intended it to be compared with artificial selection, now more commonly referred to as selective breeding”. (Wikipedia, 2014) While in the Galapagos Islands while on “the voyage of the beagle”, Charles Darwin discovered finches that where the same species, yet depending on their environment had different types of beaks. “In 1859, he set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation (of a trait), if useful, is preserved". (Wikipedia, 2014) The concept was quite simple, the individuals that best adapted to their environments are

References: 1. http://www.strangescience.net/evolution.htm. © 2007-2014 by Michon Scott - Updated March 27, 2014. 5. http://en.wikipedia.org/wiki/Comparative_anatomy. Updated February 22, 2014.