darwin's theory of evolution
Created on May 11, 2022
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the theory of evolution
The expression "the early bird catches the worms" is a good illustration of the theory of evolution developed by Charles Darwin. Indeed, first, the expression means that being first improves the chance of success. The early bird gets the worm is a proverb which emphasizes the importance of starting something early to maximize the potential outcome. This proverb explains the theory of evolution because those who start the earliest, that is to say the animals which evolve the fastest in their environment will have the advantage over the other animals less accustomed to this environment. These animals get used to their environment will therefore have a better chance of survival than an animal that is not used to it or that does not get used to a new environment quickly enough. It is also the principle of natural selection, either a species will disappear not being enough accustomed to it is environment or it will evolve to adapt.
3 example of the theory of evolution
the example of an extinct animal
the example of an animal that almost disappeared
the example of an animal that has evolved differently due to its diet
Charles Darwin was a scientist born on February 12, 1809 in Shrewsbury into a wealthy English family. Charles Darwin did not like theoretical school subjects and preferred other activities related to the profession of naturalist. Thus, in 1831, he began his voyage aboard the Beagle which would mark him for the rest of his life. It was a good opportunity for him to study the natural history of the different countries he visited, this trip will last 5 years and on his return back in 1831 he will publish a book to talk about his trip. It is from this moment that he begins to be known among scientists but what will be remembered the most is his theory of evolution which he published in 1859 in his famous book “the Origin of the species”. He died in 1882 and was buried in Westminster Abbey as a national hero.
The theory of evolution was published on November 24, 1859 by the naturalist Charles Darwin in his book “the origin of the species”. This theory will revolutionize biology and provide answers to the cause of instability and variations in living things. Indeed, the theory of evolution suggests that all living species are in perpetual transformation and undergo over time and generations both morphological and genetic modifications. According to this theory over more or less short periods can see the appearance or disappearance of several species through different phenomena including natural selection which shows that the most adapted to its environment survives. Thus he thinks that humans have common ancestors with monkeys who evolved into human beings, but this would cause debate because of religions which believe that it was divine intervention that made human beings appear.
Through evolution, dodos adapted to life in Mauritius by increasing their size and nesting on the ground. Their beaks adapted to the food they were able to find easily, and they gradually became flightless. Many island species become flightless and reach larger sizes because they adapt to isolated habitats with few large predators and reduced competition. Unfortunately, these particular adaptions left the dodos ill-prepared for the European sailors and the domestic animals they brought with them when they first arrived on Mauritius This is how the dodos disappeared about sixties years after their discovery. This example shows us that the dodo was adapted to its environment but was unable to adapt to change with the arrival of humans.
The California condor is a good example of how humans can destroy a species or on the contrary save it, in this case the theory of natural selection shows that the California condor is hunted in the same way as the dodo and almost disappeared. California Condor numbers dramatically declined in the 20th century due to agricultural chemicals, poaching, lead poisoning, and habitat destruction. A conservation plan put in place by the United States government led to the capture of all the remaining wild condors by 1987, with a total population of 27 animals. These surviving birds were bred by humans. The number of condors has increased significantly through captive breeding, and beginning in 1991, condors were reintroduced into the wild. Since then, their population has grown, but the California condor remains one of the world's rarest bird species. In December 2020 there were 504 California condors living wild or in captivity. Thus, the human being by his will was able to preserve the California condor of extinction.
We can also take the example of the Finches to illustrate the theory of evolution. Indeed, Darwin discovered several different types of finches during his trip and therefore realized that this species had different beaks to eat food depending on the type of food. therefore, shows that this species changed over time, it evolved to transform its beak. Darwin will identify 13 different species in total.