Evolution, a process by which species developed physical and psychological characteristics to survive. The best-known changes in human beings have been the way of walking (bipedalism), the ability to reason and socialize with others, or the distribution of hair on certain body parts. But have you ever wondered about many other human changes, like why our brain is so big in comparison to our body, why our teeth decreased in size or why we are able to perceive colors. Believing or not, all these three “alterations” are all related. So with this speech, I am going to let you know how all these three evolution changes are connected.
Everything starts and continues looking at the evolution of one of the most important muscles of our body, the brain. There have been many doubts about why our brain has this huge size in comparison with the brain of the other animals. Well, according to a research done in 2012 by scientists from the University of Colorado, the big size of our brain is because of a protein domain. That protein domain is called DFU1220, and the more copies of this protein you have, the bigger your brain is. To make a comparison with animals that share big part of …show more content…
If we follow the line of evolution, if the brain grows, the teeth would have to grow as well, because the body would need more energy from food consumption. However, it did not occur with human beings. Scientists from the University of Granada researched that as primitive ancestors started to eat more meat, the nutrients of this food nourished our brains. To obtain this theory, the scientists investigated the relationship between the size of post-canine teeth and the volume of the endocranium in a variety of primates, among which were found some well-preserved Homo fossils. Taking more about brain and its functions, evolution brought a skill that few animals (including human beings) improved, the ability to perceive
Everything starts and continues looking at the evolution of one of the most important muscles of our body, the brain. There have been many doubts about why our brain has this huge size in comparison with the brain of the other animals. Well, according to a research done in 2012 by scientists from the University of Colorado, the big size of our brain is because of a protein domain. That protein domain is called DFU1220, and the more copies of this protein you have, the bigger your brain is. To make a comparison with animals that share big part of …show more content…
If we follow the line of evolution, if the brain grows, the teeth would have to grow as well, because the body would need more energy from food consumption. However, it did not occur with human beings. Scientists from the University of Granada researched that as primitive ancestors started to eat more meat, the nutrients of this food nourished our brains. To obtain this theory, the scientists investigated the relationship between the size of post-canine teeth and the volume of the endocranium in a variety of primates, among which were found some well-preserved Homo fossils. Taking more about brain and its functions, evolution brought a skill that few animals (including human beings) improved, the ability to perceive