The video about Charles Darwin and the process of natural selection was very interesting. Natural selection is considered one of the most important processes for a variety of species and the environment which allows the fittest organisms to produce offspring. To prevent a species from extinction, it is necessary for them to adapt to the surrounding environment. The species which have the ability to adapt to new surroundings will be able to pass their genes through reproduction. Within the process of natural selection, it is possible for the original genetic make-up of a species to become altered.
It occurs when a species possess specific genetic traits that are beneficial to their survival in a particular environment. Those that survive because of that trait are obviously the only left to reproduce and the trait carries over to their offspring, and becomes common to that species.
Darwin identified 13 species of finches in the Galapagos Islands. He observed that the Galapagos species differed from each other in beak shape. He also noted that the beak varieties were associated with diets based on different foods. they had to adapt to different conditions and over many generations, their beaks changed in ways that allowed them to get enough food and survive to reproduce.
When thinking about the evolution of our own species over time and natural selection that occurs within it, I think that we change our environment to suit us therefore natural selection in human beings seems to have little effect.