The debate of how human brains are different from animal brains has been asked in the scientific community for years. While some argue that it is to do with us having more neurons and that our cerebral cortex is much larger than other animals’.
Suzana Herculano-Houzel, a neuroscientist at the Institute of Biomedical Science in Rio de Janeiro found a way to test these theories. By disolving brains “into a homogenous mixture, or ‘brain soup’”, she was able to count its neurons. Using this method, she found out that the number of neurons in humans is relative to our size, and would not lead to us being more intelligent than other species.
Humans do share quite a bit with our animal relatives, so why are we so different? Read this article to find out.