Why Are Human Brains So Large?

​Humans are the top of the food chain and out of all animals' humans are the most dominant. However, humans are not the fastest, strongest or the most agile of animals. Despite these problems humans have been the most dominant due to one factor our intelligence. Humans are the most Intelligent animal. A Human brain is larger than a primate brain as well. A good human brain reaches 1,500 cm^3 in adulthood. However, Gorillas only reach 500 cm^3 and Chimpanzees only reach 400 cm^3. This shows the big gap between humans and other primates. So, one question that arises is why is the human brain so large? Researchers at the Medical Research Council Laboratory of Molecular Biology in the United Kingdom tried to answer this question. They ran an experiment where they compared the brain development process between humans, chimpanzees and gorillas. They grew cells that they got form humans, chimpanzees and gorillas. After some time, the human brain organoids showed the largest growth. This was because neuronal progenitor cells in humans divided quicker compared to gorillas and chimpanzees. Zeb2 was the gene that was responsible for the quick growth of the human brain.

why_is_human_brain_big__scientists_discover_the_molecular_reason_science_news___wionews.com.pdf
File Size:	1092 kb
File Type:	pdf

Download File

---