The natural sciences, according to the TOK definition, were the sciences that demonstrate the fundamental rules and laws of nature. It is based on the measurement and processing of quantitative data in the real world. Humans have invented some models of natural processes that research both human behavior and social patterns. Being two topics of Interdependence in AOK, the humanities aim to interpret the experiences, activities, life and artifacts associated with human beings. Data, for example, were measurements of a particular item or process that were primarily based on experiment; and as for theory, it was the understanding of existing empirical knowledge, experience, facts, rules, and cognitive hypotheses demonstrated with logical and reasonable deduction in human science and natural science. The wrong thing was that sometimes both of these two sciences use an a priori method to theorize a formal system before receiving precise data instead of applying an empirical methodology with the facts. So, as knowledge claims, why were the wrong results of the experiment theorized and turned out to be true? A good example of this was Charles Darwin's theory of evolution, much evidence had shown that his theory could mislead the study of biology for almost 200 years. The data were inseparable from the theory in reality and from the facts of biology may not have as simple an origin as the theory of evolution. Darwin had “predicted” that new species would arise through natural selection that could take more than a thousand years to complete, but more data had been shown in the natural sciences of the 21st centuries: from J. Todd Streelman's research which he published in the journal national Molecular Ecology, the Cyn...... at the center of the journal ......g generally by emotion or 'imagination'. In most cases, this actually turns out to be a “mistake”. The best way to avoid the mistake was to get as many facts as possible to support the idea becoming a theory rather than a false proposition. Works Cited1. Jeffrey Todd Streelman. 2004. Scientists alter brain development to resemble that of another species. [ONLINE] Available at: http://phys.org/news192116792.html. [Accessed 18 March 14].2. Jane J. Lee. 2008. Was your ancestor a ball of jelly? The study on evolution surprises experts. [ONLINE] Available at: http://news.nationalgeographic.com/news/2013/12/131212-comb-jelly-ctenophore-ocean-animals-evolution-science/. [Accessed 18 March 14].3. POINT OF VIEW. 2008. Cooking an Egg with Two Cell Phones: Hoax. [ONLINE] Available at: http://www.mmfai.org/public/docs/eng/080414_viewpoint_eggcookinghoax_en.pdf. [Accessed March 18 14].